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Best ddr5 RAMs with CL40: 15 Spec-Based Picks

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Choosing the right ddr5 RAM with CL40 depends on your platform, module clearance, and target operating frequency. CAS Latency 40 sets a standard timing baseline across modern desktop and laptop systems.

The TEAMGROUP Elite 32GB (2x16GB) DDR5 4800MHz UDIMM Kit leads the list because its 1.1V operating voltage and dual-channel 4800MHz configuration deliver balanced desktop multitasking. We compared 15 products based strictly on the specifications published on their listings. This guide helps you decide which form factor, module capacity, and transfer speed match your motherboard.

Quick picks

#ProductBest forPrice
1 TEAMGROUP Elite 32GB (2x16GB) DDR5 4800MHz UDIMM Kit Best overall standard 32GB DDR5 desktop PC builds Check price of TEAMGROUP Elite 32GB (2x16GB) DDR5 4800MHz UDIMM Kit on Amazon
2 Crucial 16GB DDR5 4800MHz Desktop RAM Best budget entry-level DDR5 desktop upgrades Check price of Crucial 16GB DDR5 4800MHz Desktop RAM on Amazon
3 Kingston Fury Beast 32GB 5200MT/s DDR5 RAM Best premium low-profile Intel XMP desktop builds Check price of Kingston Fury Beast 32GB 5200MT/s DDR5 RAM on Amazon
4 TEAMGROUP T-Force Delta RGB DDR5 32GB 6400MHz Best 6400mhz high-speed 6400MHz Intel desktop builds Check price of TEAMGROUP T-Force Delta RGB DDR5 32GB 6400MHz on Amazon
5 Kingston Fury Beast 16GB 5600MT/s CL40 DDR5 RAM Also great single-module 5600MT/s desktop builds and expansions Check price of Kingston Fury Beast 16GB 5600MT/s CL40 DDR5 RAM on Amazon
6 ADATA Premier 16GB DDR5 4800MHz SODIMM Also great single-channel laptop DDR5 memory upgrades Check price of ADATA Premier 16GB DDR5 4800MHz SODIMM on Amazon
7 Crucial 32GB 4800MHz CL40 DDR5 SODIMM Laptop RAM Also great single-module laptop memory upgrades Check price of Crucial 32GB 4800MHz CL40 DDR5 SODIMM Laptop RAM on Amazon
8 Kingston FURY Beast 16GB 5600MT/s CL40 DDR5 RAM Also great compact desktops needing 5600MT/s dual-channel memory Check price of Kingston FURY Beast 16GB 5600MT/s CL40 DDR5 RAM on Amazon
9 Patriot Viper Venom 32GB DDR5-6200 CL40 Kit Best amd expo AMD EXPO systems needing 6200MHz speeds Check price of Patriot Viper Venom 32GB DDR5-6200 CL40 Kit on Amazon
10 Timetec 16GB (2x8GB) DDR5 4800MHz SODIMM Also great Dual-channel DDR5 laptop memory upgrades Check price of Timetec 16GB (2x8GB) DDR5 4800MHz SODIMM on Amazon
11 A-Tech 32GB DDR5 4800MHz CL40 SODIMM Also great single-slot 32GB laptop and mini PC upgrades Check price of A-Tech 32GB DDR5 4800MHz CL40 SODIMM on Amazon
12 A-Tech 16GB DDR5 4800MHz CL40 UDIMM Also great single-module desktop DDR5 baseline upgrades Check price of A-Tech 16GB DDR5 4800MHz CL40 UDIMM on Amazon
13 G.SKILL Ripjaws DDR5 32GB (2x16GB) 4800MHz SODIMM Also great laptop upgrades needing 32GB dual-channel CL40 DDR5 Check price of G.SKILL Ripjaws DDR5 32GB (2x16GB) 4800MHz SODIMM on Amazon
14 Kingston Fury Beast RGB 64GB 5200MT/s DDR5 Also great high-capacity builds needing RGB lighting Check price of Kingston Fury Beast RGB 64GB 5200MT/s DDR5 on Amazon
15 Kingston Fury Beast RGB 32GB 5200MT/s DDR5 Also great RGB desktop builds using Intel XMP 3.0 Check price of Kingston Fury Beast RGB 32GB 5200MT/s DDR5 on Amazon

The best fit for you

Our 15 picks

Best overall

TEAMGROUP Elite 32GB (2x16GB) DDR5 4800MHz UDIMM Kit

Best for: standard 32GB DDR5 desktop PC builds

CAS Latency
CL40
Capacity
32GB
Memory Speed
4800MHz
Kit Configuration
2x16GB
Form Factor
288 Pin UDIMM
Voltage
1.1V

View on Amazon: TEAMGROUP Elite 32GB (2x16GB) DDR5 4800MHz UDIMM Kit

The TEAMGROUP Elite DDR5 32GB Kit delivers baseline standard DDR5 performance for desktop systems. You get a two-module dual-channel setup running at 4800MHz with CL40 latency at 1.1V. It includes on-die ECC to correct DRAM cells directly on the chip. This kit suits you if you need a standard 288-pin UDIMM desktop configuration that provides reliable multitasking capacity without requiring higher custom operating voltages.

Pros

  • 32GB dual-channel configuration using two 16GB modules
  • Standard 1.1V working voltage for energy efficiency
  • JEDEC on-die ECC for DRAM cell stability
  • Includes manufacturer lifetime warranty and free technical support

Cons

  • Baseline 4800MHz transfer rate rather than higher-frequency tiers
  • Desktop UDIMM form factor incompatible with SODIMM laptop slots
  • Standard CL40-40-40-77 base timings without tighter latency profiles

Good fit if

  • You need a 32GB dual-channel memory kit for a DDR5 desktop motherboard.
  • You prefer standard 1.1V power consumption rather than high-voltage modules.
  • You want on-die ECC support to maintain memory cell reliability.

Skip if

  • You need laptop memory requiring a SODIMM form factor.
  • You want memory operating above the baseline 4800MHz frequency.

Verdict: TEAMGROUP Elite 32GB (2x16GB) DDR5 4800MHz UDIMM Kit provides dependable standard-spec capacity and JEDEC 1.1V efficiency for DDR5 desktop builds. Its dual-channel setup and on-die ECC deliver consistent baseline desktop multitasking.

Best budget

Crucial 16GB DDR5 4800MHz Desktop RAM

Best for: entry-level DDR5 desktop upgrades

CAS Latency
CL40
Capacity
16GB
Memory Speed
4800MHz
Form Factor
288-pin UDIMM
Overclocking Profile
Intel XMP 3.0, AMD EXPO
Voltage
1.1V

View on Amazon: Crucial 16GB DDR5 4800MHz Desktop RAM

This Crucial module provides 16GB of DDR5 memory running at 4800MHz with CL40 latency. Built on a standard 288-pin UDIMM form factor, it operates at 1.1V and supports both Intel XMP 3.0 and AMD EXPO profiles. It fits desktop systems using 12th or 13th Gen Intel Core or AMD Ryzen 7000 processors. You get baseline DDR5 operating speed suitable for simple single-channel setups or paired dual-channel expansion.

Pros

  • Supports both Intel XMP 3.0 and AMD EXPO on the same module
  • Standard 1.1V low-voltage operation
  • Compact 1.23-inch height clears tight desktop CPU coolers
  • Compatible with 12th and 13th Gen Intel and AMD Ryzen 7000 CPUs

Cons

  • Single 16GB module requires a second stick for dual-channel bandwidth
  • Base 4800MHz transfer rate is modest compared to higher-frequency DDR5

Good fit if

  • You need a single 16GB module for a basic DDR5 desktop build.
  • You want support for both Intel XMP 3.0 and AMD EXPO on one stick.

Skip if

  • You want an out-of-the-box dual-channel pair of modules.
  • You require speeds higher than standard 4800MHz.

Verdict: Crucial 16GB DDR5 4800MHz Desktop RAM delivers baseline 4800MHz CL40 performance with dual Intel XMP 3.0 and AMD EXPO compatibility. It is a practical, straightforward choice for basic desktop DDR5 configurations.

Best premium

Kingston Fury Beast 32GB 5200MT/s DDR5 RAM

Best for: low-profile Intel XMP desktop builds

CAS Latency
CL40
Capacity
32GB
Memory Speed
5200MT/s
Kit Configuration
2x16GB
Overclocking Profile
Intel XMP 3.0
Compatible Device
Desktop

View on Amazon: Kingston Fury Beast 32GB 5200MT/s DDR5 RAM

This kit is a two-module 32GB DDR5 desktop memory pack running at 5200MT/s with CL40 latency. It features a low-profile black heat spreader that measures 1.37 inches tall to maintain clearance beneath CPU coolers. Built-in Intel XMP 3.0 support provides factory-configured overclocking profiles for compatible desktop systems. You get high bandwidth across two 16GB sticks for multitasking workloads that require dependable DDR5 speeds without oversized module dimensions.

Pros

  • 5200MT/s transfer speed with CL40 latency
  • Low-profile 1.37-inch heat spreader height
  • Intel XMP 3.0 overclocking support
  • Dual-channel 32GB configuration across two 16GB sticks

Cons

  • No integrated RGB lighting listed
  • Desktop form factor not compatible with laptop SODIMM slots

Good fit if

  • You need a 32GB desktop DDR5 setup operating at 5200MT/s.
  • You want a low-profile 1.37-inch module height to clear CPU coolers.
  • You use an Intel desktop platform supporting XMP 3.0.

Skip if

  • You need SODIMM memory for a laptop upgrade.
  • You want integrated RGB lighting on your memory modules.

Verdict: Kingston Fury Beast 32GB 5200MT/s DDR5 RAM delivers CL40 timing and Intel XMP 3.0 support in a compact 1.37-inch profile. It provides a dependable dual-stick memory upgrade for desktop builds requiring solid DDR5 clearance.

Best 6400mhz

TEAMGROUP T-Force Delta RGB DDR5 32GB 6400MHz

Best for: high-speed 6400MHz Intel desktop builds

CAS Latency
CL40
Capacity
32GB
Memory Speed
6400MHz
Kit Configuration
2x16GB
Overclocking Profile
Intel XMP 3.0
ECC Support
On-die ECC

View on Amazon: TEAMGROUP T-Force Delta RGB DDR5 32GB 6400MHz

This TEAMGROUP T-Force Delta RGB kit gives you 32GB of desktop memory across two 16GB modules. Running at 6400MHz with a CL40 CAS latency, it provides the highest transfer rate among the CL40 options in this guide. It includes Intel XMP 3.0 support, on-die ECC, and 120-degree RGB lighting. You will find it well suited if you run an Intel 600 or 700 series desktop build and need fast DDR5 speeds.

Pros

  • Fast 6400MHz operating frequency at CL40
  • Intel XMP 3.0 profile for one-click setup
  • 120-degree ultra-wide RGB illumination
  • Strengthened cooling design for onboard PMIC

Cons

  • Module height of 1.79 inches can restrict large air cooler clearance
  • Only specifies compatibility for Intel 600 and 700 series chipsets

Good fit if

  • You run an Intel 600 or 700 series motherboard with XMP 3.0 support.
  • You want 6400MHz transfer speeds in a 32GB dual-channel kit.
  • You prefer white modules with integrated 120-degree RGB lighting.

Skip if

  • You need low-profile RAM to clear tight CPU air coolers.
  • You are building a laptop system that requires SODIMM memory.

Verdict: TEAMGROUP T-Force Delta RGB DDR5 32GB 6400MHz pairs high 6400MHz desktop speeds with CL40 latency for Intel 600 and 700 series platforms. Its tall white heat spreader and full RGB bar make it a distinct spec-driven choice for modern desktop builds.

Also great

Kingston Fury Beast 16GB 5600MT/s CL40 DDR5 RAM

Best for: single-module 5600MT/s desktop builds and expansions

CAS Latency
CL40
Capacity
16GB
Memory Speed
5600MT/s
Form Factor
DIMM
Overclocking Profile
Intel XMP 3.0
Compatible Device
Desktop

View on Amazon: Kingston Fury Beast 16GB 5600MT/s CL40 DDR5 RAM

This Kingston Fury Beast module delivers 16GB of DDR5 desktop memory running at 5600MT/s with CL40 latency. It features a low-profile black heat spreader and supports Intel XMP 3.0 profiles for straightforward speed configuration. Because this package contains a single module rather than a multi-channel kit, you get an easy upgrade path to add capacity later while maintaining 5600MT/s CL40 performance on compatible desktop motherboards.

Pros

  • 5600MT/s data transfer rate with CL40 latency
  • Intel XMP 3.0 support
  • Low-profile heat spreader design
  • Single 16GB module leaves motherboard slots open for expansion

Cons

  • Single-module configuration does not deliver multi-channel bandwidth out of the box
  • No integrated RGB lighting

Good fit if

  • You need a single 16GB DDR5 desktop module operating at 5600MT/s.
  • You want Intel XMP 3.0 support for automated memory configuration.
  • You prefer a low-profile heat spreader to fit under tight CPU coolers.

Skip if

  • You need a multi-module kit immediately for dual-channel operation.
  • You require integrated RGB lighting.

Verdict: Kingston Fury Beast 16GB 5600MT/s CL40 DDR5 RAM offers 5600MT/s speed, CL40 timing, and Intel XMP 3.0 support in a low-profile desktop module. It provides a straightforward single-stick option if you plan to upgrade memory capacity in stages.

Also great

ADATA Premier 16GB DDR5 4800MHz SODIMM

Best for: single-channel laptop DDR5 memory upgrades

CAS Latency
CL40
Capacity
16GB
Memory Speed
4800MHz
Kit Configuration
1x16GB
Form Factor
262-Pin SODIMM
ECC Support
On-Die Error Correcting Code

View on Amazon: ADATA Premier 16GB DDR5 4800MHz SODIMM

The ADATA Premier 16GB DDR5 4800MHz module is a single-stick 262-pin SODIMM designed for notebooks and compact systems. It runs at a 4800MHz frequency with CL40 CAS latency and includes an on-die error correcting code alongside an integrated power management IC. This module suits you if you want to expand laptop memory with a standard-speed stick for everyday tasks.

Pros

  • CL40 CAS latency at 4800MHz frequency
  • Built-in Power Management IC for efficiency
  • On-die error correcting code (ECC)
  • Compact 262-pin SODIMM laptop form factor

Cons

  • Single-module package rather than a dual-channel pair
  • Not compatible with full-size desktop UDIMM slots

Good fit if

  • You need a single 16GB DDR5 SODIMM module for a notebook or mini PC.
  • You want standard 4800MHz speeds with baseline CL40 timings.
  • You need built-in power management and on-die ECC for stable operation.

Skip if

  • You are building or upgrading a standard desktop PC requiring UDIMM memory.
  • You want a dual-channel kit containing two matching sticks in one box.

Verdict: ADATA Premier 16GB DDR5 4800MHz SODIMM delivers standard 4800MHz CL40 performance in a single compact module with on-die ECC. It is a straightforward upgrade for notebooks and small systems that use DDR5 SODIMM slots.

Also great

Crucial 32GB 4800MHz CL40 DDR5 SODIMM Laptop RAM

Best for: single-module laptop memory upgrades

CAS Latency
CL40
Capacity
32GB
Memory Speed
4800MHz
Form Factor
262-pin SODIMM
Overclocking Profile
Intel XMP 3.0 and AMD EXPO
Voltage
1.1V

View on Amazon: Crucial 32GB 4800MHz CL40 DDR5 SODIMM Laptop RAM

This is a single 32GB DDR5 SODIMM laptop memory module operating at 4800MHz with a CL40 CAS latency at 1.1V. It features a dual-rank 2Rx8 262-pin design compatible with Intel 12th Gen and AMD Ryzen 7000 mobile platforms. You also get built-in support for both Intel XMP 3.0 and AMD EXPO overclocking profiles. It fits laptops requiring a high-density, low-voltage memory upgrade.

Pros

  • Supports both Intel XMP 3.0 and AMD EXPO
  • Dense 32GB capacity on a single stick
  • Standard 1.1V DDR5 operating voltage
  • Dual-rank 2Rx8 architecture

Cons

  • Single module provides no out-of-the-box dual-channel performance
  • Base 4800MHz clock rate is lower than 5200MHz alternatives
  • SODIMM form factor does not fit desktop motherboards

Good fit if

  • You need a single 32GB DDR5 SODIMM stick for your laptop.
  • You use an Intel 12th Gen Core or AMD Ryzen 7000 series system.
  • You want cross-platform support for Intel XMP 3.0 and AMD EXPO.

Skip if

  • You need standard 288-pin UDIMM memory for a desktop build.
  • You require speeds higher than 4800MHz.
  • You need ECC error-checking support.

Verdict: Crucial 32GB 4800MHz CL40 DDR5 SODIMM Laptop RAM delivers dense mobile memory capacity at standard 1.1V power. It provides a straightforward upgrade for compatible Intel and AMD laptops.

Also great

Kingston FURY Beast 16GB 5600MT/s CL40 DDR5 RAM

Best for: compact desktops needing 5600MT/s dual-channel memory

CAS Latency
CL40
Capacity
16GB
Memory Speed
5600MT/s
Kit Configuration
2x8GB
Overclocking Profile
Intel XMP 3.0
Compatible Device
Desktop

View on Amazon: Kingston FURY Beast 16GB 5600MT/s CL40 DDR5 RAM

This Kingston FURY Beast desktop memory kit delivers 16GB of capacity divided across two 8GB modules. Operating at a 5600MT/s speed with CL40 latency, it supports Intel XMP 3.0 profiles for standard overclocking setups. The physical modules stand 1.37 inches tall, using a low-profile black heat spreader. You will find it suitable if you need dual-channel DDR5 performance and low physical clearance for compact desktop cooling configurations.

Pros

  • 5600MT/s transfer speed at CL40 latency
  • Dual-channel setup with two 8GB modules
  • Low-profile heat spreader measuring 1.37 inches tall
  • Intel XMP 3.0 overclocking support

Cons

  • 16GB total capacity is lower than 32GB alternatives
  • Desktop form factor incompatible with laptops
  • No integrated RGB lighting listed

Good fit if

  • You want a dual-channel 16GB kit running at 5600MT/s.
  • You have a desktop build with tight cooler clearance under 1.4 inches.
  • You use an Intel system that supports XMP 3.0.

Skip if

  • You need 32GB or more total system memory.
  • You require SODIMM modules for a laptop system.

Verdict: Kingston FURY Beast 16GB 5600MT/s CL40 DDR5 RAM delivers balanced 5600MT/s speeds and dual-channel bandwidth in a low-profile 1.37-inch format. It is a solid pick if your desktop setup requires compact CL40 modules.

Best amd expo

Patriot Viper Venom 32GB DDR5-6200 CL40 Kit

Best for: AMD EXPO systems needing 6200MHz speeds

CAS Latency
CL40
Capacity
32GB
Memory Speed
6200MHz
Kit Configuration
2 x 16GB
Form Factor
UDIMM
Overclocking Profile
Intel XMP, AMD Expo

View on Amazon: Patriot Viper Venom 32GB DDR5-6200 CL40 Kit

This Patriot Memory Viper Venom kit gives you 32GB of desktop memory across two 16GB UDIMM modules. It runs at a 6200MHz clock rate with a CL40 CAS latency at 1.35V. With built-in profiles for both AMD EXPO and Intel XMP 3.0, it suits your high-speed gaming setup if your motherboard supports memory overclocking beyond standard base frequencies. The non-ECC unbuffered design delivers dual-channel bandwidth for responsive desktop performance.

Pros

  • Supports AMD EXPO and Intel XMP overclocking profiles
  • High 6200MHz transfer speed with CL40 timing
  • Dual-channel 32GB kit using two 16GB UDIMMs
  • Covered by a limited lifetime warranty

Cons

  • Requires 1.35V operating voltage rather than baseline 1.1V
  • Non-ECC unbuffered memory lacks workstation-grade error correction

Good fit if

  • You run an AMD or Intel desktop motherboard that supports 6200MHz memory.
  • You need a 32GB dual-channel kit configured for CL40 latency.
  • You want one-click profile tuning using AMD EXPO or Intel XMP 3.0.

Skip if

  • You need standard 1.1V DDR5 memory without overclocking profiles.
  • You require ECC memory for error-tolerant workstation tasks.
  • You are upgrading a laptop that requires SODIMM modules.

Verdict: Patriot Viper Venom 32GB DDR5-6200 CL40 Kit delivers fast 6200MHz speeds with AMD EXPO and Intel XMP support for compatible desktop builds. It provides a straightforward 32GB dual-channel upgrade if your motherboard handles 1.35V memory profiles.

Also great

Timetec 16GB (2x8GB) DDR5 4800MHz SODIMM

Best for: Dual-channel DDR5 laptop memory upgrades

CAS Latency
CL40
Capacity
16GB
Memory Speed
4800MHz
Kit Configuration
2x8GB
Form Factor
262 Pin SODIMM
Voltage
1.1V

View on Amazon: Timetec 16GB (2x8GB) DDR5 4800MHz SODIMM

The Timetec 16GB (2x8GB) DDR5 4800MHz SODIMM kit provides a two-module upgrade for DDR5 laptops. It operates at 4800MHz with CL40 timings (CL40-40-40-77) and draws 1.1V using an onboard PMIC. The dual-channel two-stick layout gives you balanced memory distribution. This kit suits you if you need a standard-speed memory upgrade for basic multitasking in your laptop.

Pros

  • Includes two 8GB modules for dual-channel operation
  • Standard 1.1V operating voltage managed by onboard PMIC
  • On-die ECC (ODEC) handles internal error correction
  • JEDEC standard 4800MHz frequency with CL40-40-40-77 latency

Cons

  • Laptop 262-pin SODIMM form factor does not fit desktop slots
  • Base 4800MHz transfer rate is slower than 5200MHz or 5600MHz options

Good fit if

  • You need a matched pair of 8GB modules for a DDR5 laptop.
  • You want standard 1.1V JEDEC-spec memory running at 4800MHz CL40.

Skip if

  • You build or upgrade a desktop system requiring UDIMM modules.
  • You want memory operating above the baseline 4800MHz rate.

Verdict: Timetec 16GB (2x8GB) DDR5 4800MHz SODIMM delivers baseline DDR5 laptop performance with dual-channel modules and low 1.1V power consumption. It is a practical fit for portable systems that need standard CL40 laptop memory.

Also great

A-Tech 32GB DDR5 4800MHz CL40 SODIMM

Best for: single-slot 32GB laptop and mini PC upgrades

CAS Latency
CL40
Capacity
32GB
Memory Speed
4800MHz
Kit Configuration
1 x 32GB
Form Factor
262-Pin SO-DIMM
Voltage
1.1V

View on Amazon: A-Tech 32GB DDR5 4800MHz CL40 SODIMM

This A-Tech memory module provides 32GB of DDR5 capacity on a single 262-pin SODIMM stick. Running at 4800MHz with CL40 latency, it operates at the standard JEDEC 1.1V level. The dual-rank 2Rx8 design fits compatible laptops, mini PCs, and all-in-one systems with DDR5 support. If you need to upgrade a portable system or small desktop using a single high-capacity module while keeping stock timings, this unbuffered non-ECC memory serves your setup directly.

Pros

  • Single 32GB module maximizes per-slot capacity
  • Standard JEDEC 1.1V operating voltage
  • Dual-rank 2Rx8 configuration
  • Compact 262-pin SODIMM form factor for mobile systems

Cons

  • Single module does not supply dual-channel operation on its own
  • 4800MHz speed is the baseline DDR5 data rate
  • Not compatible with standard 288-pin desktop UDIMM slots

Good fit if

  • You need a single 32GB SODIMM for a laptop, mini PC, or all-in-one computer.
  • You want standard JEDEC 1.1V DDR5 memory running at 4800MHz with CL40 latency.

Skip if

  • You require full-size UDIMM memory for a standard desktop motherboard.
  • You want an out-of-the-box dual-channel two-stick memory kit.

Verdict: A-Tech 32GB DDR5 4800MHz CL40 SODIMM delivers high-capacity mobile memory built to JEDEC 1.1V baseline standards. It is a straightforward upgrade for compatible notebooks and compact PCs needing unbuffered non-ECC DDR5.

Also great

A-Tech 16GB DDR5 4800MHz CL40 UDIMM

Best for: single-module desktop DDR5 baseline upgrades

CAS Latency
CL40
Capacity
16GB
Memory Speed
4800MHz
Kit Configuration
1 x 16GB
Form Factor
288-Pin UDIMM
Voltage
1.1V

View on Amazon: A-Tech 16GB DDR5 4800MHz CL40 UDIMM

This single-module desktop RAM gives you 16GB of DDR5 memory running at 4800MHz with a CL40 CAS latency. It uses a standard 288-pin UDIMM form factor and operates at the default JEDEC voltage of 1.1V. Because it is non-ECC and unbuffered, this stick suits you if you need a straightforward desktop memory upgrade or want to expand your current workstation capacity without changing baseline voltage settings.

Pros

  • Operates at standard 1.1V JEDEC baseline voltage
  • Matches CL40 CAS latency at 4800MHz speed
  • Backed by a limited lifetime warranty
  • Standard 288-pin UDIMM format for desktop PCs

Cons

  • Single-module pack does not provide dual-channel operation on its own
  • Non-ECC unbuffered design lacks error-correcting code support

Good fit if

  • You need a single 16GB DDR5 module for a standard desktop motherboard.
  • You want 4800MHz CL40 memory running at stock 1.1V power.

Skip if

  • You need a two-stick kit out of the box for dual-channel memory.
  • You require ECC memory for error-checking workstation hardware.

Verdict: A-Tech 16GB DDR5 4800MHz CL40 UDIMM delivers standard JEDEC 1.1V operation and baseline 4800MHz CL40 speeds in a single module. It is a practical pick if you want reliable desktop capacity without adjusting memory voltages.

Also great

G.SKILL Ripjaws DDR5 32GB (2x16GB) 4800MHz SODIMM

Best for: laptop upgrades needing 32GB dual-channel CL40 DDR5

CAS Latency
CL40
Capacity
32GB
Memory Speed
4800MT/s
Kit Configuration
2x16GB
Form Factor
262-Pin SO-DIMM
Voltage
1.10V

View on Amazon: G.SKILL Ripjaws DDR5 32GB (2x16GB) 4800MHz SODIMM

This G.SKILL Ripjaws memory kit gives you 32GB of dual-channel capacity across two 16GB laptop modules. It operates at 4800MHz with CL40 latency (CL40-39-39-76 timings) under standard 1.10V power. Designed specifically for notebooks and compact systems using 262-pin SODIMM slots, it suits you if you need a plug-and-play non-ECC memory upgrade running at baseline JEDEC speeds.

Pros

  • 32GB total capacity split across two matched 16GB modules
  • Operates at 4800MHz with CL40-39-39-76 timings
  • Low 1.10V operating voltage
  • Boots at default JEDEC SPD speed on compatible systems

Cons

  • Limited to 262-pin SODIMM laptop slots, not desktop DIMM sockets
  • Non-ECC unbuffered memory without error correction

Good fit if

  • You want a 32GB DDR5 dual-channel kit for a compatible laptop.
  • You need standard 4800MHz CL40 timings running at 1.10V.
  • You prefer a matched two-stick kit to prevent pairing instability.

Skip if

  • You need full-size 288-pin UDIMM RAM for a desktop motherboard.
  • You require ECC support for workstation reliability.

Verdict: G.SKILL Ripjaws DDR5 32GB (2x16GB) 4800MHz SODIMM is a practical dual-module laptop kit that delivers standard 4800MHz CL40 memory performance at 1.10V.

Also great

Kingston Fury Beast RGB 64GB 5200MT/s DDR5

Best for: high-capacity builds needing RGB lighting

CAS Latency
CL40
Capacity
64GB
Memory Speed
5200 MHz
Kit Configuration
2 x 32GB
Overclocking Profile
Intel XMP 3.0
Voltage
1.25 V

View on Amazon: Kingston Fury Beast RGB 64GB 5200MT/s DDR5

This desktop kit gives you 64GB of memory across two 32GB DDR5 modules. It runs at a 5200MT/s transfer speed with a CL40 CAS latency and supports Intel XMP 3.0 profiles for configuration. Integrated RGB lighting accents the black modules. Each stick measures 1.66 inches tall, so you need to check CPU cooler clearance. It suits you if you need high capacity for heavy multitasking.

Pros

  • 64GB total capacity across two 32GB modules
  • 5200MT/s speed with CL40 CAS latency
  • Intel XMP 3.0 support
  • Built-in RGB lighting

Cons

  • 1.66-inch module height may interfere with large air coolers
  • Runs at 5200MT/s rather than the line's faster 5600MT/s variation

Good fit if

  • You need 64GB of total system memory in two slots.
  • You want integrated RGB lighting on your modules.
  • You have a system compatible with Intel XMP 3.0.

Skip if

  • You have tight cooler clearance that cannot accommodate 1.66-inch tall modules.
  • You prefer memory running at 5600MT/s or faster.

Verdict: Kingston Fury Beast RGB 64GB 5200MT/s DDR5 provides dual-channel 64GB capacity and Intel XMP 3.0 support at CL40 latency. It delivers ample memory and RGB styling if your chassis accommodates 1.66-inch modules.

Also great

Kingston Fury Beast RGB 32GB 5200MT/s DDR5

Best for: RGB desktop builds using Intel XMP 3.0

CAS Latency
CL40
Capacity
32GB
Memory Speed
5200MT/s
Kit Configuration
Kit of 2
Form Factor
DIMM
Overclocking Profile
Intel XMP 3.0

View on Amazon: Kingston Fury Beast RGB 32GB 5200MT/s DDR5

This Kingston Fury Beast RGB kit provides 32GB of DDR5 desktop memory across two modules. It runs at 5200MT/s with a CL40 latency rating. The integrated heat spreader includes customizable RGB illumination that aligns via Kingston Infrared Sync Technology. You also get Intel XMP 3.0 support for configured overclocking profiles. This kit suits your desktop setup if you need moderate-speed DDR5 performance combined with synchronized lighting.

Pros

  • Supports Intel XMP 3.0 overclocking profiles
  • Uses Kingston Infrared Sync Technology for lighting alignment
  • Delivers 5200MT/s transfer rates at CL40 latency
  • Equipped with an integrated heat spreader

Cons

  • Measures 1.66 inches tall, which may limit clearance under large air coolers
  • Uses standard DIMM format and is incompatible with SODIMM laptop slots

Good fit if

  • You need a 32GB dual-channel DDR5 kit running at 5200MT/s.
  • You use an Intel desktop platform compatible with XMP 3.0.
  • You want RGB memory with hardware-based infrared synchronization.

Skip if

  • You need low-profile RAM under 1.66 inches for small form factor clearance.
  • You require SODIMM memory for a laptop upgrade.

Verdict: Kingston Fury Beast RGB 32GB 5200MT/s DDR5 delivers stable dual-channel desktop memory with Intel XMP 3.0 support. It provides balanced CL40 speed alongside synchronized RGB lighting in a 1.66-inch form factor.

Specifications side by side

Spec TEAMGROUP Elite 32GB (2x16GB) DDR5 4800MHz UDIMM Kit Crucial 16GB DDR5 4800MHz Desktop RAM Kingston Fury Beast 32GB 5200MT/s DDR5 RAM TEAMGROUP T-Force Delta RGB DDR5 32GB 6400MHz Kingston Fury Beast 16GB 5600MT/s CL40 DDR5 RAM ADATA Premier 16GB DDR5 4800MHz SODIMM Crucial 32GB 4800MHz CL40 DDR5 SODIMM Laptop RAM Kingston FURY Beast 16GB 5600MT/s CL40 DDR5 RAM Patriot Viper Venom 32GB DDR5-6200 CL40 Kit Timetec 16GB (2x8GB) DDR5 4800MHz SODIMM A-Tech 32GB DDR5 4800MHz CL40 SODIMM A-Tech 16GB DDR5 4800MHz CL40 UDIMM G.SKILL Ripjaws DDR5 32GB (2x16GB) 4800MHz SODIMM Kingston Fury Beast RGB 64GB 5200MT/s DDR5 Kingston Fury Beast RGB 32GB 5200MT/s DDR5
Capacity 32GB 16GB 32GB 32GB 16GB 16GB 32GB 16GB 32GB 16GB 32GB 16GB 32GB 64GB 32GB
Memory Speed 4800MHz 4800MHz 5200MT/s 6400MHz 5600MT/s 4800MHz 4800MHz 5600MT/s 6200MHz 4800MHz 4800MHz 4800MHz 4800MT/s 5200 MHz 5200MT/s
CAS Latency CL40 CL40 CL40 CL40 CL40 CL40 CL40 CL40 CL40 CL40 CL40 CL40 CL40 CL40 CL40
Kit Configuration 2x16GB not specified 2x16GB 2x16GB not specified 1x16GB not specified 2x8GB 2 x 16GB 2x8GB 1 x 32GB 1 x 16GB 2x16GB 2 x 32GB Kit of 2
Form Factor 288 Pin UDIMM 288-pin UDIMM not specified not specified DIMM 262-Pin SODIMM 262-pin SODIMM not specified UDIMM 262 Pin SODIMM 262-Pin SO-DIMM 288-Pin UDIMM 262-Pin SO-DIMM not specified DIMM
Overclocking Profile not specified Intel XMP 3.0, AMD EXPO Intel XMP 3.0 Intel XMP 3.0 Intel XMP 3.0 not specified Intel XMP 3.0 and AMD EXPO Intel XMP 3.0 Intel XMP, AMD Expo not specified not specified not specified not specified Intel XMP 3.0 Intel XMP 3.0
Voltage 1.1V 1.1V not specified not specified not specified not specified 1.1V not specified 1.35v 1.1V 1.1V 1.1V 1.10V 1.25 V not specified
ECC Support Non-ECC, On-die ECC Non-ECC not specified On-die ECC not specified On-Die Error Correcting Code non-ECC not specified NON-ECC Non-ECC Non-ECC Unbuffered Non-ECC Unbuffered Non-ECC Non-ECC not specified
Compatible Device Desktop, PC Desktop Desktop Desktop Desktop not specified Laptop Desktop Desktop Laptop PC, Laptop Desktop, PC Laptop Desktop, PC Desktop
Size 32GB 16GB 32GB 32GB(2x16GB) 5600MT/s 16GB(1x16GB) 32GB 16GB (2x8GB) 32GB (2 x 16GB) 6200MHz 16GB KIT(2x8GB) Single Rank 32GB (1 x 32GB) 16GB (1 x 16GB) 32GB (2x16GB) 64GB (2x32GB) 32GB
Dimensions 5.91 × 50 × 30.3 inches 5.25 × 0.16 × 1.23 inches 5.25 × 0.26 × 1.37 inches 5.68 × 0.28 × 1.79 inches 5.4 × 0.5 × 1.9 inches 23.6 × 23.6 × 33.5 inches 3.15 × 0.16 × 1.81 inches 5.25 × 0.26 × 1.37 inches 8.66 × 3.15 × 1.18 inches not specified 2.74 × 1.18 × 0.15 inches 5.25 × 1.23 × 0.15 inches not specified 5.25 × 0.28 × 1.66 inches 5.25 × 0.28 × 1.66 inches
Weight 0.53 ounces not specified 2.72 ounces 1.59 ounces 1.38 ounces 0.71 ounces not specified 0.63 ounces 0.71 ounces not specified not specified not specified not specified 3.17 ounces 3.17 ounces
Color Dual Channel Multicolor Black White Black 4800MHz not specified Black Black 4800MHz Multicolor Multicolor Black Black RGB
Model TED532G4800C40DC01 CT16G48C40U5 KF552C40BBK2-32 FF4D532G6400HC40BDC01 KF556C40BB-16 AD5S480016G-S CT32G48C40S5 KF556C40BBK2-16 Viper Venom 76 AT32G1D5S4800ND8N11V AT16G1D5D4800NA0N11V F5-4800S4039A16GA2-RS KF552C40BBAK2-64 KF552C40BBAK2-32

Is CL40 memory worth it for your build?

CL40 measures the clock cycle delay before data transfer begins. Across DDR5 hardware, CL40 pairs with standard 4800MHz frequencies as well as overclocked speeds up to 6400MHz. It allows memory to run at default 1.1V specifications or higher profile settings like 1.35V. In daily use, CL40 provides stable responsiveness for desktop multitasking and laptop computing. You get broad platform compatibility across Intel and AMD systems without managing aggressive sub-timings.

Worth it if

  • You want standard JEDEC 4800MHz performance running at 1.1V baseline voltage.
  • You need reliable dual-channel memory for everyday multitasking in a desktop or laptop.
  • You use Intel XMP or AMD EXPO profiles to reach higher frequencies up to 6400MHz.

Skip it if

  • You require lower CAS latency timings for specialized, latency-critical applications.
  • You need registered ECC memory for enterprise server hardware.

How We Picked CL40 DDR5 RAM

You find DDR5 memory here by looking at published specifications from product listings. Every module or kit qualifies when the title or feature list specifies CAS Latency: CL40. Hardware is not physically handled or tested. All technical details come directly from published manufacturer specifications, and the list includes only one variant per product family.

The 15 picks show products in stock first. To help you compare picks, listings detail specs such as memory speeds from 4800MHz to 6400MHz, UDIMM or SODIMM form factors, and capacities between 16GB and 64GB. The selections also identify standard 1.1V or 1.35V operating voltages and overclocking profiles like Intel XMP and AMD EXPO.

Key Specs for Choosing CL40 DDR5 RAM

  1. Selecting Target Memory Speed

    Review your platform memory speed ratings before choosing a frequency. DDR5 CL40 kits range from baseline 4800MHz speeds up to 6400MHz. Higher frequencies increase overall bandwidth. Standard desktop chipsets run 4800MHz or 5200MT/s without complex tuning. Enthusiast motherboards support high-frequency memory like the TEAMGROUP T-Force Delta RGB DDR5 32GB 6400MHz. Match the advertised frequency to your specific processor specifications. Operating beyond motherboard qualified speed lists can cause boot failure or force memory to downclock to basic speeds.

  2. Checking Overclocking Profile Support

    Verify the automated profile format supported by your motherboard BIOS. Intel systems use XMP profiles, while AMD systems rely on AMD EXPO. Certain kits include only Intel XMP support, while dual-profile kits provide pre-programmed settings for both platforms. Choosing an incompatible profile requires manual entry of primary timings and voltages. The Patriot Viper Venom 32GB DDR5-6200 CL40 Kit lists both Intel XMP and AMD EXPO compatibility. Confirm that your system firmware supports the profile standard listed on the memory module packaging before making your selection.

  3. Measuring Heat Spreader Clearance

    Measure the clearance under your CPU cooler before purchasing tall desktop modules. DDR5 heatsinks vary substantially in vertical height. Low-profile memory modules measure around 1.37 inches high, fitting beneath large dual-tower air heatsinks. Modules with integrated RGB diffusers often exceed 1.66 to 1.79 inches in height, which can collide with low-hanging cooler fans. The Kingston Fury Beast 32GB 5200MT/s DDR5 RAM maintains a compact 1.37-inch height for crowded chassis layouts. Check your cooler clearance specifications to ensure modules seat completely without touching cooler fins.

  4. Module Configuration and Channels

    Decide between a single module or a multi-module kit based on your upgrade roadmap. Single-module packages allow you to populate one slot now and add another module later. Dual-module kits provide two identical sticks in one package, ensuring immediate multi-channel operation and matched factory timings. A single module like the Crucial 16GB DDR5 4800MHz Desktop RAM fits systems where you plan incremental upgrades. If you want maximum memory bandwidth immediately without future part matching, pick a kit that contains two matched modules from the start.

  5. Sizing Total System Capacity

    Determine total memory capacity based on your software workloads. Base 16GB configurations handle everyday computing and lighter application sets. A 32GB configuration provides sufficient headroom for intensive multitasking and heavy workloads without running into paging limits. High-capacity 64GB kits serve dense workloads requiring continuous access to large datasets in memory. The Kingston Fury Beast RGB 64GB 5200MT/s DDR5 provides dual 32GB modules for high-memory setups. Check your motherboard maximum supported capacity per slot to ensure your system recognizes the full density of each module.

Frequently asked questions

Can you install DDR5 CL40 SODIMM modules into a desktop motherboard?

No, you cannot install DDR5 SODIMM modules into standard desktop motherboard slots directly. SODIMM sticks, such as the ADATA Premier 16GB or Crucial 32GB models, use a compact form factor engineered exclusively for laptops and small-form-factor devices. Desktop motherboards require full-size UDIMM memory sticks, such as the TEAMGROUP Elite 32GB kit or Crucial 16GB module, because the physical pin configuration and slot dimensions differ completely.

What is the fastest memory speed offered among DDR5 CL40 kits?

The highest rated speed in this spec category reaches 6400MHz. The TEAMGROUP T-Force Delta RGB 32GB kit operates at this 6400MHz frequency while maintaining CL40 latency for compatible Intel systems. Another fast option includes the Patriot Viper Venom kit at 6200MHz, while baseline JEDEC configurations typically operate at 4800MHz with standard 1.1V power delivery.

Does DDR5 CL40 RAM support AMD EXPO overclocking profiles?

Yes, select DDR5 CL40 memory kits include AMD EXPO profiles alongside Intel XMP. For example, the Patriot Viper Venom 32GB DDR5-6200 kit features both AMD EXPO and Intel XMP profiles for automated tuning at 1.35V. Additionally, the Crucial 16GB 4800MHz desktop module lists dual support for EXPO and XMP 3.0 platforms, allowing you to load certified settings directly within your motherboard setup.

How much physical clearance do low-profile DDR5 CL40 modules provide?

Low-profile desktop options provide compact clearance around 1.37 inches tall. The Kingston Fury Beast 32GB 5200MT/s kit and the 16GB dual-channel variant both measure 1.37 inches in height, fitting under larger CPU air coolers. By comparison, tall modules featuring integrated RGB bars, such as the TEAMGROUP T-Force Delta RGB at 1.79 inches or Kingston Fury Beast RGB at 1.66 inches, require more vertical space.

What is the maximum kit capacity available for DDR5 CL40 memory?

The largest pre-packaged kit option reaches 64GB of total system memory. The Kingston Fury Beast RGB 64GB kit provides this density using two 32GB modules running at 5200MT/s. If you configure a desktop or mobile machine using single modules, standalone 32GB sticks from Crucial, A-Tech, or TEAMGROUP can also be combined across available slots to meet expanded workload demands.

Can you run a single DDR5 CL40 stick rather than a paired kit?

Yes, you can run a single DDR5 CL40 stick in systems supporting single-channel operation. Standalone options like the Kingston Fury Beast 16GB 5600MT/s module, Crucial 16GB desktop stick, or A-Tech 16GB UDIMM allow for simple setup. While dual-module configurations double available memory bus channels, a single module lets you leave vacant slots open on your motherboard for planned memory additions later.

Do DDR5 CL40 memory modules feature on-die error correction?

Yes, on-die ECC is an internal architectural feature integrated directly into DDR5 component chips. Modules such as the TEAMGROUP Elite 32GB desktop kit and ADATA Premier 16GB laptop SODIMM utilize on-die ECC to correct bit errors within the memory package itself. However, these consumer kits remain classified as Non-ECC memory because they do not communicate side-band error data directly to the host CPU.

See also