The Best Samsung DDR4 RAMS in 2026: 15 Picks
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You need reliable memory for your hardware. This guide covers the best samsung ddr4 RAMs Samsung publishes for servers and laptops. The range includes single sticks and kits in 16GB, 32GB, 64GB, and 256GB capacities. You will find standard SODIMMs for portable systems and registered ECC RDIMMs for enterprise racks. The top pick is the Samsung 32GB DDR4-2133 ECC Registered Memory, which leads due to its verified compatibility with low-profile server platforms. We compared 15 products based strictly on their published specifications.
Quick picks
Our 15 picks
Samsung 32GB DDR4-2133 ECC Registered Memory
Best for: DDR4-2133 enterprise server memory upgrades
- Total Capacity
- 32GB
- Memory Speed
- 2133 MHz
- Module Configuration
- 1x32GB
- ECC Support
- ECC REG
- Dimensions
- 5.25 × 0.15 × 1.23 inches
View on Amazon: Samsung 32GB DDR4-2133 ECC Registered Memory
This Samsung module delivers 32GB of DDR4 memory running at 2133MHz. Built with a 2Rx4 dual-rank layout and low-profile design, it includes registered ECC support to catch data errors in server environments. You get stable multi-tasking density for enterprise systems, though its registered design limits it strictly to compatible server motherboards that accept DDR4-2133 registered DIMMs.
Pros
- 32GB capacity on a single module
- Registered ECC support for enterprise data reliability
- 2Rx4 dual-rank low-profile physical design
Cons
- 2133MHz operating speed is lower than 2666MHz and 3200MHz options
- ECC Registered requirement prevents use in standard desktop motherboards
Good fit if
- You need 32GB of registered ECC DDR4 memory for a compatible server.
- You run a low-profile rack system capped at DDR4-2133 speeds.
Skip if
- You are building or upgrading a consumer desktop or laptop.
- You need faster memory frequencies such as 2666MHz or 3200MHz.
Verdict: Samsung 32GB DDR4-2133 ECC Registered RAM supplies enterprise error checking and 32GB capacity for server platforms operating at 2133MHz. It fits sysadmins expanding memory in low-profile rack hardware without changing base platforms.
Samsung 32GB DDR4 2133MHz ECC LRDIMM
Best for: server systems requiring 2133 MHz DDR4 LRDIMMs
- Total Capacity
- 32GB
- Memory Speed
- 2133 MHz
- CAS Latency
- CL15
- Voltage
- 1.2V
- Module Configuration
- 1x32GB
- Form Factor
- U-DIMM
This Samsung memory module gives you 32GB of DDR4 server memory operating at 2133 MHz with CL15 latency. Built as a 288-pin quad-rank load-reduced DIMM running at 1.2V, it delivers enterprise stability for demanding rack workloads. It fits your setup if you manage compatible server platforms requiring LRDIMMs rather than standard registered or unbuffered modules.
Pros
- 32GB capacity on a single 288-pin module
- Low CAS latency of CL15
- Standard 1.2V DDR4 power operation
- Quad-rank (4Rx4) load-reduced architecture
Cons
- Base 2133 MHz frequency is lower than 2666 MHz and 3200 MHz alternatives
- Incompatible with desktop PCs, laptops, and consumer motherboards
- Cannot be mixed with ECC Registered, ECC Unbuffered, or Non-ECC memory
Good fit if
- You run a compatible server motherboard requiring 288-pin DDR4 LRDIMM memory.
- You need quad-rank 4Rx4 modules operating at low CL15 latency.
- You want a single 32GB stick to expand server memory pools.
Skip if
- You build or upgrade a standard desktop PC or laptop system.
- You need memory speeds above 2133 MHz for faster server throughput.
- You already have ECC Registered (RDIMM) or unbuffered modules installed.
Verdict: Samsung 32GB 2133MHz CL15 DDR4 LRDIMM serves server administrators who need quad-rank, load-reduced ECC memory for specific enterprise boards. It provides reliable low-latency capacity where higher-frequency RDIMMs cannot be deployed.
Samsung 32GB DDR4-2400 ECC Registered Server RAM
Best for: Supermicro DDR4 server deployments and upgrades
- Total Capacity
- 32GB
- Memory Speed
- 2400MHz
- ECC Support
- LP ECC REG
- Compatible Device
- Server
- Dimensions
- 6 × 4 × 0.5 inches
- Weight
- 1.6 ounces
View on Amazon: Samsung 32GB DDR4-2400 ECC Registered Server RAM
This Samsung module gives you 32GB of DDR4 memory running at 2400 MHz. Built specifically for servers, it features ECC Registered architecture and a low-profile 2Rx4 design. If you need Supermicro-certified memory to maintain system stability and correct data errors in a rack server, this single module fits your hardware requirements directly.
Pros
- 32GB capacity on a single module
- ECC Registered support for data integrity
- Supermicro certified compatibility
- Low-profile 2Rx4 physical build
Cons
- Operates at 2400 MHz, below 2666 MHz and 3200 MHz alternatives
- Restricted to server platforms and incompatible with standard desktop PCs
Good fit if
- You need 32GB ECC Registered memory for a server motherboard.
- You run Supermicro hardware requiring certified memory modules.
Skip if
- You need standard unbuffered RAM for a desktop or laptop.
- You require memory frequencies higher than 2400 MHz.
Verdict: Samsung 32GB DDR4-2400 ECC Registered Server RAM provides certified ECC memory for administrators maintaining DDR4-based Supermicro server platforms.
Samsung 32GB DDR4 ECC RDIMM
Best for: server upgrades requiring 2666MHz registered ECC memory
- Total Capacity
- 32GB
- Memory Speed
- 2666 MT/s
- Form Factor
- RDIMM
- ECC Support
- ECC
- Compatible Device
- Server
This Samsung module delivers 32GB of DDR4 memory running at PC4-2666V speeds. It features an RDIMM server form factor with ECC error checking and a dual-rank 2Rx4 layout. You get stable data integrity and standard 2666MHz server throughput. It suits you if you need to expand registered memory in compatible enterprise server motherboards without purchasing multi-stick bundles.
Pros
- 32GB capacity on a single module
- DDR4-2666 transfer speed (PC4-21300)
- ECC registered data integrity support
- Dual-rank 2Rx4 architecture
Cons
- RDIMM form factor is incompatible with standard desktop or laptop boards
- 2666MHz operating speed is lower than 3200MHz DDR4 options
Good fit if
- You manage a server system designed for registered DDR4 ECC memory.
- You need a single 32GB 2Rx4 module rated for 2666MHz operation.
Skip if
- You build a standard desktop PC requiring unbuffered memory.
- You require memory kits operating at 3200MHz speeds.
Verdict: Samsung 32GB DDR4-2666 ECC RDIMM fits enterprise server administrators adding reliable 2666MHz registered ECC memory to compatible hardware platforms.
Samsung 32GB DDR4 ECC RDIMM
Best for: server setups needing 2666MHz CL19 RDIMM memory
- Total Capacity
- 32GB
- Memory Speed
- 2666
- CAS Latency
- CL19
- Form Factor
- RDIMM
- ECC Support
- ECC
- Compatible Device
- Server
This Samsung 32GB DDR4-2666 CL19 ECC RDIMM provides registered server memory operating at 2666MHz with CL19 latency. It features a 2Rx4 rank configuration and error-correcting code support for server platforms. You should consider this single 32GB module if you need to upgrade compatible enterprise hardware requiring DDR4-2666 registered memory rather than standard desktop RAM.
Pros
- 32GB single-module capacity
- 2666MHz operating speed with CL19 CAS latency
- ECC RDIMM design for server stability
- 2Rx4 dual-rank architecture
Cons
- RDIMM form factor is incompatible with standard desktop motherboards
- 2666MHz transfer rate is slower than 3200MHz DDR4 options
- Single-module packaging without paired sticks
Good fit if
- You manage a server system that requires DDR4 registered DIMMs.
- You need 2666MHz server memory with CL19 CAS latency.
- You want a single 32GB module to expand existing server capacity.
Skip if
- You need memory for a desktop PC or laptop.
- You require speeds higher than 2666MHz.
Verdict: Samsung 32GB DDR4-2666 CL19 ECC RDIMM is built for server administrators who need 2666MHz ECC registered memory in a single 32GB module. It delivers targeted error-correcting performance for enterprise platforms requiring CL19 RDIMMs.
Samsung 256GB (8x32GB) DDR4 2666MHz RDIMM Kit
Best for: high-capacity eight-slot enterprise server upgrades
- Total Capacity
- 256GB
- Memory Speed
- 2666MHz
- CAS Latency
- CL 19
- Module Configuration
- 8 x 32GB
- Form Factor
- RDIMM
- ECC Support
- Registered
View on Amazon: Samsung 256GB (8x32GB) DDR4 2666MHz RDIMM Kit
This Samsung memory bundle gives you 256GB of DDR4 memory across eight 32GB registered DIMMs. It operates at 2666MHz with CL 19 latency and uses a standard 288-pin server interface. Designed strictly for server platforms requiring RDIMM modules, this high-capacity configuration suits enterprise workloads, virtualization hosts, and memory-heavy infrastructure needing large pooled RAM across eight slots.
Pros
- 256GB total capacity across eight 32GB modules
- Registered ECC (RDIMM) design for server stability
- 2666MHz transfer rate with CL 19 latency
Cons
- Incompatible with desktop motherboards
- Requires eight free 288-pin memory slots
- Lower 2666MHz speed than 3200MHz alternatives
Good fit if
- You need 256GB of pooled ECC memory for high-density server tasks.
- You run a multi-channel server board with eight available RDIMM slots.
Skip if
- You run a standard consumer desktop motherboard.
- You have a system with fewer than eight available memory slots.
Verdict: Samsung 256GB (8x32GB) DDR4 2666MHz RDIMM Kit fits server administrators expanding virtualization capacity or enterprise database hosts across an eight-slot system.
Samsung 64GB (2x32GB) 2666MHz DDR4 RDIMM
Best for: servers needing 64GB registered DDR4 memory
- Total Capacity
- 64GB
- Memory Speed
- 2666MHz
- CAS Latency
- CL 19
- Module Configuration
- 2 x 32GB
- Form Factor
- RDIMM
- ECC Support
- Registered
This two-piece Samsung memory kit provides 64GB of DDR4 memory using two matched 32GB RDIMMs. It operates at 2666MHz with a CAS latency of CL 19 across 288-pin server interfaces. Because these are registered ECC modules, they fit compatible enterprise and server motherboards rather than standard desktop systems. You get dual-channel deployment for dedicated workloads.
Pros
- 64GB total capacity via two 32GB RDIMMs
- 2666MHz transfer rate (PC4-21300)
- Registered ECC support for server stability
- Standard 288-pin form factor
Cons
- Incompatible with desktop motherboards
- Lower 2666MHz clock compared to 2933MHz or 3200MHz alternatives
Good fit if
- You need a 64GB two-module registered kit for a server setup.
- You require 2666MHz DDR4 memory with CL 19 timings.
Skip if
- You use a standard consumer desktop motherboard.
- You need clock speeds higher than 2666MHz.
Verdict: Samsung 64GB 2666MHz DDR4 RDIMM Kit supplies registered ECC memory strictly for compatible servers that support 2666MHz speeds. It suits server administrators expanding memory across two slots without needing desktop compatibility.
Samsung 32GB 2666MHz DDR4 Server RDIMM
Best for: four-slot server memory upgrades needing 128GB
- Total Capacity
- 128GB
- Memory Speed
- 2666MHz
- Module Configuration
- 4 x 32GB
- Form Factor
- RDIMM
- ECC Support
- Registered
- Compatible Device
- Server
This bundle provides 128GB of total memory split across four 32GB DDR4 registered modules. Operating at a 2666MHz clock speed with PC4-21300 throughput, it uses an RDIMM form factor specifically for server platforms. You get multi-channel distribution across four slots, making it suitable if your server workload requires substantial capacity and registered memory support.
Pros
- 128GB total capacity across four 32GB modules
- 2666MHz operating frequency with PC4-21300 rating
- Registered RDIMM design with server ECC support
Cons
- Requires four available server memory slots
- Operates at 2666MHz rather than faster 2933MHz or 3200MHz DDR4 options
- Incompatible with standard desktop and laptop motherboards
Good fit if
- You need 128GB of registered memory across four server DIMM slots.
- Your server platform is designed for 2666MHz DDR4 RDIMMs.
Skip if
- You use a desktop or laptop that requires unbuffered DIMMs or SODIMMs.
- You need higher memory frequencies like 2933MHz or 3200MHz.
Verdict: Samsung 128GB DDR4 2666MHz Server RDIMM Kit fits multi-channel server setups needing a four-module 128GB registered memory configuration.
Samsung 128GB 4x32GB DDR4 2666MHz RDIMM
Best for: Dell PowerEdge four-channel server memory upgrades
- Total Capacity
- 128GB
- Memory Speed
- 2666MHz
- CAS Latency
- CL 19
- Module Configuration
- 4 x 32GB
- ECC Support
- Registered
This bundle gives you 128GB of DDR4 memory across four 32GB registered DIMMs. It operates at 2666MHz with a CAS latency of CL 19 using a standard 288-pin interface. It suits you if you maintain compatible Dell PowerEdge systems like the R440 or R740 and need a multi-channel memory upgrade for server workloads.
Pros
- Total capacity of 128GB split into four 32GB modules
- Registered ECC design for enterprise system stability
- Compatible with Dell PowerEdge models including R440, R640, and R740
Cons
- Rated at 2666MHz rather than higher 2933MHz or 3200MHz DDR4 speeds
- Requires four open 288-pin DIMM slots on your system board
Good fit if
- You run Dell PowerEdge servers such as the R440, R640, or T440
- You want to populate four DIMM channels to reach 128GB total memory
Skip if
- You need higher memory frequencies like 2933MHz or 3200MHz
- You use consumer PC motherboards that do not take registered ECC modules
Verdict: Samsung 128GB (4x32GB) DDR4 2666MHz ECC RDIMM delivers a four-stick registered configuration tailored specifically for administrators deploying memory upgrades across supported Dell PowerEdge rack and tower systems.
Samsung 128GB DDR4 2400MHz Server Kit
Best for: Dell PowerEdge server capacity upgrades
- Total Capacity
- 128GB
- Memory Speed
- 2400MHz
- CAS Latency
- CL 17
- Module Configuration
- 4 x 32GB
- ECC Support
- Registered
This Samsung bundle provides 128GB of total memory across four 32GB modules. It runs at 2400MHz with a CAS Latency of 17. The modules use 288-pin Registered DIMM design for server stability. You get a complete kit for Dell PowerEdge systems like the R430 and R730. This setup suits users needing high capacity for enterprise workloads.
Pros
- 128GB total capacity via four 32GB sticks
- 2400MHz memory speed
- 288-pin Registered DIMM form factor
- CAS Latency 17 timing
Cons
- Lower 2400MHz speed compared to 2666MHz or 3200MHz options on this list
- Specific compatibility limited to select Dell PowerEdge server models
- Requires four slots, leaving no room for future expansion in standard dual-channel boards
Good fit if
- You need maximum RAM capacity for a Dell PowerEdge server
- You are upgrading a compatible rack or tower server model
- You prioritize stability and registered memory over raw speed
Skip if
- You need faster 2666MHz or 3200MHz speeds
- You are building a standard desktop or laptop
- You only have two memory slots available
Verdict: Samsung 128GB DDR4 2400MHz Registered Kit delivers the high capacity required for specific Dell PowerEdge servers, making it the right fit for enterprise infrastructure upgrades.
Samsung 32GB DDR4 3200MHz SODIMM Laptop RAM
Best for: high-capacity 3200MHz laptop memory upgrades
- Total Capacity
- 32GB
- Memory Speed
- 3200 Mbps
- Voltage
- 1.2V
- Form Factor
- SODIMM
- Compatible Device
- Laptop
- Dimensions
- 2.75 × 0.13 × 1.18 inches
This Samsung memory module provides 32GB of DDR4 capacity for compatible laptops. It operates at 3200MHz on a standard 1.2V supply, matching PC4-25600 specifications across a 260-pin SODIMM interface. The dual-rank module features sixteen chips in a 2Rx8 layout. You can install it to expand system memory for resource-heavy computing tasks while maintaining standard operating voltage.
Pros
- 3200MHz speed rating matching PC4-25600 bandwidth
- Standard low-power 1.2V operation
- 32GB capacity on a single module
- Dual-rank 2Rx8 architecture with 16 memory chips
Cons
- 260-pin SODIMM form factor is incompatible with full-size desktop slots
- Single module does not supply dual-channel operation on its own
Good fit if
- You need 32GB of memory in a single SODIMM slot.
- You have a notebook that supports 1.2V DDR4 memory at 3200MHz.
Skip if
- You need full-size desktop DIMM or server RDIMM memory modules.
- You require a factory-matched pair of sticks for multi-channel memory setups.
Verdict: Samsung 32GB DDR4 3200MHz SODIMM equips compatible notebooks with substantial capacity and 3200MHz bandwidth on a standard 1.2V power profile.
Samsung 16GB 3200MHz DDR4 SODIMM
Best for: laptop memory upgrades needing 16GB capacity
- Total Capacity
- 16GB
- Memory Speed
- 3200 MT/s
- CAS Latency
- CL22
- Voltage
- 1.2V
- Module Configuration
- 1x16GB
- Form Factor
- SO-DIMM
This Samsung 16GB DDR4 3200MHz SODIMM gives you a single memory module for compatible laptops, notebooks, and all-in-one computers. It operates at 1.2V with CL22 CAS latency and a dual-rank 2Rx8 layout. You get standard non-ECC unbuffered memory designed to replace or expand existing system RAM without requiring extra power or custom voltage adjustments.
Pros
- Runs at 3200MHz memory speed
- Standard 1.2V operating voltage
- Dual-rank 2Rx8 module configuration
- Compact 260-pin SODIMM form factor
Cons
- Single 16GB stick offers less total capacity than multi-module bundles
- Non-ECC unbuffered specification excludes server motherboard use
- CL22 CAS latency is higher than lower-speed DDR4 alternatives
Good fit if
- You need a single 16GB module for a compatible notebook or all-in-one computer.
- You require 3200MHz speed at standard 1.2V non-ECC unbuffered specifications.
Skip if
- You need registered ECC RDIMM modules for a dedicated server platform.
- You require full-size desktop DIMM slots rather than 260-pin SODIMM.
Verdict: Samsung 16GB DDR4 3200MHz SODIMM delivers standard 1.2V dual-rank memory for laptop and all-in-one users who need to add 16GB of non-ECC capacity. It fits portable systems designed for 260-pin modules running at 3200MHz.
Samsung 64GB DDR4 2666MHz ECC RDIMM
Best for: server builds requiring dense ECC registered memory
- Total Capacity
- 64GB
- Memory Speed
- 2666 MHz
- Voltage
- 1.2V
- Module Configuration
- 1x64GB
- Form Factor
- RDIMM
- ECC Support
- ECC Registered
This Samsung memory module gives you 64GB of DDR4 server capacity on a single stick. It operates at 2666MHz with a standard 1.2V supply. Designed as an ECC registered RDIMM, it features a 2S2Rx4 rank organization. If you need dense memory for a compatible server motherboard running DDR4 RDIMMs, this module delivers high capacity per slot.
Pros
- High single-module capacity of 64GB
- Registered ECC design for server memory integrity
- Standard 1.2V operating voltage
- 2666MHz (PC4-21300) transfer speed
Cons
- Operates at 2666MHz, which is slower than 2933MHz server options
- Server-only RDIMM form factor is incompatible with standard desktop PCs
- CAS latency timing is not specified in the product data
Good fit if
- You need 64GB of memory in a single server slot.
- You run an enterprise platform requiring DDR4 ECC registered modules.
- You want standard 1.2V DDR4-2666 memory for your server build.
Skip if
- You use a desktop or laptop motherboard that requires unbuffered RAM.
- You need faster DDR4 frequencies such as 2933MHz or 3200MHz.
Verdict: Samsung 64GB DDR4 2666MHz ECC RDIMM is built for enterprise administrators who need dense, reliable memory capacity across DDR4 server sockets. It maximizes per-slot capacity while operating at standard 1.2V power.
Samsung 64GB DDR4 2933MHz ECC RDIMM
Best for: DDR4 servers needing 64GB 2933MHz RDIMMs
- Total Capacity
- 64GB
- Memory Speed
- 2933 MHz
- Module Configuration
- 1x64GB
- Form Factor
- RDIMM
- ECC Support
- ECC Registered
- Compatible Device
- Server
This Samsung module is a 64GB DDR4 server memory stick with a 2933 MHz operating speed. Built with a 2Rx4 rank design, it features an RDIMM form factor and ECC Registered support. It suits you if you need a high-capacity memory upgrade for Dell, HP, Lenovo, or other systems that accept DDR4 RDIMM modules.
Pros
- 64GB capacity on a single stick
- 2933 MHz memory speed (PC4-2933Y)
- ECC Registered support for server data integrity
- 2Rx4 dual-rank architecture
Cons
- RDIMM form factor will not function in standard consumer desktop motherboards
- Product specifications do not list CAS latency or timing details
Good fit if
- You need 64GB of memory on a single DDR4 server module.
- You run a compatible Dell, HP, or Lenovo system supporting 2933 MHz RDIMMs.
Skip if
- You need unbuffered DIMMs or SODIMMs for a desktop PC or laptop.
- You need a multi-module kit rather than a single memory stick.
Verdict: Samsung 64GB DDR4 2933MHz ECC RDIMM is designed for server administrators who need 64GB density and 2933 MHz speed for enterprise platforms from Dell, HP, or Lenovo.
Samsung 32GB (2x16GB) DDR4 3200MHz SODIMM Kit
Best for: laptop users needing dual-channel DDR4 expansion
- Total Capacity
- 32GB
- Memory Speed
- 3200MHz
- CAS Latency
- CL22
- Voltage
- 1.2V
- Module Configuration
- 2x16GB
- Form Factor
- SODIMM
View on Amazon: Samsung 32GB (2x16GB) DDR4 3200MHz SODIMM Kit
This Samsung 32GB memory kit includes two 16GB 260-pin DDR4 SODIMM modules. Operating at 3200MHz with CL22 latency at standard 1.2V, it runs in a single-rank 1Rx8 configuration. It suits you if you need to upgrade compatible laptops, notebooks, or all-in-one computers with dual-channel non-ECC memory to expand system resources.
Pros
- Dual-module 32GB kit (2 x 16GB) enables dual-channel operation
- Runs at 3200MHz using standard JEDEC 1.2V power
- Compact 260-pin SODIMM format fits laptops and all-in-ones
Cons
- Non-ECC unbuffered design lacks error-correcting server capability
- CL22 CAS latency is higher than lower-frequency DDR4 specs
Good fit if
- You need a 32GB dual-channel DDR4 memory kit for your laptop or notebook.
- You have a system supporting 3200MHz 260-pin SODIMM memory at 1.2V.
Skip if
- You require ECC registered memory for server hardware.
- You have a desktop computer requiring standard full-size DIMM slots.
Verdict: Samsung 32GB (2x16GB) DDR4 3200MHz SODIMM Kit equips laptop and all-in-one users with a matching pair of 1.2V modules for dual-channel memory expansion.
Specifications side by side
| Spec | Samsung 32GB DDR4-2133 ECC Registered Memory | Samsung 32GB DDR4 2133MHz ECC LRDIMM | Samsung 32GB DDR4-2400 ECC Registered Server RAM | Samsung 32GB DDR4 ECC RDIMM | Samsung 32GB DDR4 ECC RDIMM | Samsung 256GB (8x32GB) DDR4 2666MHz RDIMM Kit | Samsung 64GB (2x32GB) 2666MHz DDR4 RDIMM | Samsung 32GB 2666MHz DDR4 Server RDIMM | Samsung 128GB 4x32GB DDR4 2666MHz RDIMM | Samsung 128GB DDR4 2400MHz Server Kit | Samsung 32GB DDR4 3200MHz SODIMM Laptop RAM | Samsung 16GB 3200MHz DDR4 SODIMM | Samsung 64GB DDR4 2666MHz ECC RDIMM | Samsung 64GB DDR4 2933MHz ECC RDIMM | Samsung 32GB (2x16GB) DDR4 3200MHz SODIMM Kit |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Total Capacity | 32GB | 32GB | 32GB | 32GB | 32GB | 256GB | 64GB | 128GB | 128GB | 128GB | 32GB | 16GB | 64GB | 64GB | 32GB |
| Memory Speed | 2133 MHz | 2133 MHz | 2400MHz | 2666 MT/s | 2666 | 2666MHz | 2666MHz | 2666MHz | 2666MHz | 2400MHz | 3200 Mbps | 3200 MT/s | 2666 MHz | 2933 MHz | 3200MHz |
| CAS Latency | not specified | CL15 | not specified | not specified | CL19 | CL 19 | CL 19 | not specified | CL 19 | CL 17 | not specified | CL22 | not specified | not specified | CL22 |
| Voltage | not specified | 1.2V | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | 1.2V | 1.2V | 1.2V | not specified | 1.2V |
| Module Configuration | 1x32GB | 1x32GB | not specified | not specified | not specified | 8 x 32GB | 2 x 32GB | 4 x 32GB | 4 x 32GB | 4 x 32GB | not specified | 1x16GB | 1x64GB | 1x64GB | 2x16GB |
| Form Factor | not specified | U-DIMM | not specified | RDIMM | RDIMM | RDIMM | RDIMM | RDIMM | not specified | not specified | SODIMM | SO-DIMM | RDIMM | RDIMM | SODIMM |
| ECC Support | ECC REG | ECC LRDIMM | LP ECC REG | ECC | ECC | Registered | Registered | Registered | Registered | Registered | not specified | Non-ECC | ECC Registered | ECC Registered | Non-ECC |
| Compatible Device | not specified | not specified | Server | Server | Server | Server | Server | Server | not specified | not specified | Laptop | Laptop | Server | Server | Laptop |
| Size | 32GB | 32GB | 32GB | 32GB | 32GB | not specified | 64GB | 32GB | not specified | not specified | 32GB | 16GB | 64 | 64GB | 16GB | 1Rx8 |
| Dimensions | 5.25 × 0.15 × 1.23 inches | 5.25 × 0.06 × 1.18 inches | 6 × 4 × 0.5 inches | not specified | not specified | not specified | not specified | not specified | not specified | not specified | 2.75 × 0.13 × 1.18 inches | not specified | 5.3 × 1.3 × 0.1 inches | 5.3 × 1.3 × 0.1 inches | 2.74 × 1.18 × 0.15 inches |
| Weight | not specified | 0.8 ounces | 1.6 ounces | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified |
| Color | Black | Black | Black | not specified | Multicolor | Multicolor | Multicolor | Multicolor | Multicolor | Multicolor | Multicolor | Multicolor | not specified | not specified | 2 Module Kit |
| Model | M393A4K40BB0-CPB4Y | 107938 | M393A4K40BB1-CRC | M393A4K40BB2-CTD | M393A4K40CB2-CTD7Q | ASIRAM22 | ASIRAM20 | ASIRAM21 | ASIRAM5 | ASIRAM1 | M471A4G43AB1-CWE | M471A2K43DB1-CWE | M393A8K40B22-CWD | M393A8G40MB2-CVF | not specified |
Samsung DDR4 RAM Specs
Samsung offers DDR4 memory for distinct hardware needs. You can choose from server-grade RDIMMs and LRDIMMs for enterprise racks. These modules provide ECC support and high capacities like 256GB kits. They suit administrators upgrading Dell or Supermicro platforms. Laptop users should look at SODIMMs instead. These smaller modules run at 1.2V and include 3200MHz options for portable systems.
Speed and latency vary across the lineup. You will find 2133MHz, 2400MHz, and 2666MHz frequencies. Some sticks feature CL15 or CL19 timing. The Samsung 32GB DDR4-2133 ECC Registered Memory leads the server category. For laptops, the Samsung 16GB 3200MHz DDR4 SODIMM offers compact capacity. Choose based on your device form factor and required bandwidth.
Where Samsung fits
Samsung’s DDR4 range covers 16GB laptop sticks up to 256GB server kits. You will find standard SODIMMs for notebooks and registered RDIMMs or LRDIMMs for enterprise racks. Capacities step from 16GB to 64GB single modules, with multi-stick kits reaching 128GB and 256GB. Speeds span 2133MHz to 3200MHz. The lineup lacks desktop UDIMMs. You must choose between portable SODIMMs or server-grade ECC modules. There are no non-ECC desktop options in this list. Your choice depends on whether you need portable or rack hardware support.
If you need a compatible board, compare memory slot and chipset specifications across the best DDR4 motherboards.
How to choose the right Samsung DDR4 RAM
-
Match the form factor first
Your device dictates the physical shape of the module. Servers use long RDIMMs or LRDIMMs, while laptops require shorter SODIMMs. The Samsung 32GB DDR4-2133 ECC Registered Memory fits standard server slots with its 5.25-inch length. In contrast, the Samsung 32GB DDR4 3200MHz SODIMM measures only 2.75 inches long for notebook compatibility. Installing the wrong form factor prevents the system from booting entirely. Always verify the slot type before purchasing any memory kit for your specific hardware platform.
-
Verify ECC support requirements
Enterprise servers often require Error Correction Code memory to prevent data corruption during heavy workloads. The Samsung 32GB DDR4-2133 ECC Registered Memory includes this critical feature for stable operation. Laptop modules like the Samsung 16GB 3200MHz DDR4 SODIMM typically lack ECC to save space and power. Check your motherboard specifications to see if it mandates ECC. Using non-ECC memory in a server that requires it can lead to system instability or failure to recognize the installed capacity during the POST sequence.
-
Align memory speed with the CPU
Memory must run at a speed your processor and motherboard support. The Samsung 64GB DDR4 2933MHz ECC RDIMM operates at 2933 MHz, which is faster than many standard 2666 MHz modules. If your system only supports 2666 MHz, this faster stick will downclock to match the limit. Conversely, the Samsung 32GB DDR4-2133 ECC Registered Memory runs at 2133 MHz, suitable for older server platforms. Ensure the rated speed matches your hardware capabilities to avoid performance bottlenecks or compatibility issues.
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Check capacity needs for the workload
Determine how much memory your applications require. Virtualization hosts or database servers may need the Samsung 256GB (8x32GB) DDR4 2666MHz RDIMM Kit to handle multiple virtual machines simultaneously. Single-module options like the Samsung 64GB DDR4 2666MHz ECC RDIMM offer high density for systems with fewer slots. Laptop users might find the Samsung 16GB 3200MHz DDR4 SODIMM sufficient for general productivity tasks. Calculate your total memory demand and select a kit that meets or exceeds that threshold without exceeding slot limits.
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Consider voltage and power profiles
Standard DDR4 memory operates at 1.2V, which balances performance and energy efficiency. The Samsung 32GB DDR4 3200MHz SODIMM runs on this standard voltage, making it safe for most modern laptops and desktops. Some older or specialized server modules may have different voltage requirements, though 1.2V is the current norm. Verify that your power delivery system can handle the specific voltage profile of the chosen RAM. Mismatched voltage settings can cause instability or prevent the system from initializing the memory correctly during startup.
Frequently asked questions
What is the highest capacity Samsung DDR4 RAM available?
The Samsung 256GB (8x32GB) DDR4 2666MHz RDIMM Kit holds the highest capacity on this list. It consists of eight 32GB modules designed for eight-slot enterprise systems. This configuration supports virtualization and database workloads where maximum memory density is required for server administrators.
Which Samsung DDR4 stick is best for laptop upgrades?
The Samsung 32GB DDR4 3200MHz SODIMM is the top choice for laptops. It fits standard 260-pin notebook slots and operates at 1.2V. For users needing less capacity, the 16GB 3200MHz SODIMM offers a dual-rank option with CL22 latency for portable systems.
Does Samsung DDR4 RAM include error correction for servers?
Yes, most server-grade modules include ECC support. The Samsung 32GB DDR4-2133 ECC Registered Memory and the 32GB DDR4 2666MHz ECC RDIMM both feature error-correcting code technology. This ensures data integrity for enterprise platforms running databases or virtualization software without manual intervention.
What is the fastest speed available in Samsung DDR4 SODIMMs?
The fastest speed for Samsung DDR4 SODIMMs is 3200MHz. You can find this in the 32GB single stick and the 32GB (2x16GB) dual-channel kit. These modules operate at 1.2V and provide higher bandwidth for compatible laptop and all-in-one systems.
Which Samsung RAM is suitable for Dell PowerEdge servers?
The Samsung 128GB (4x32GB) DDR4 2666MHz ECC RDIMM is tailored for Dell PowerEdge systems. It provides a four-stick registered configuration for multi-channel setups. Additionally, the 128GB DDR4 2400MHz Registered Kit offers high capacity for specific Dell PowerEdge rack and tower upgrades.
What is the difference between RDIMM and LRDIMM in Samsung kits?
RDIMMs use registered memory for standard server reliability, while LRDIMMs use load-reduced technology for higher density. The Samsung 32GB DDR4 2133MHz ECC LRDIMM serves systems needing quad-rank capacity where standard RDIMMs cannot be deployed. Both types support ECC for data protection.
What is the largest single-module capacity offered by Samsung?
The largest single-module capacity is 64GB. Samsung offers this in 2666MHz and 2933MHz DDR4 ECC RDIMMs. These dense modules maximize per-slot capacity for enterprise servers, allowing administrators to fill fewer slots while achieving high total memory counts at standard 1.2V power levels.
Which Samsung RAM has the lowest CAS latency?
The Samsung 32GB DDR4-2666 CL19 ECC RDIMM features a CAS latency of 19. This is the lowest latency specified for any module on this list. It delivers targeted error-correcting performance for enterprise platforms requiring faster response times at 2666MHz speeds.