Timetec DDR4-2666 4GB Replacement Synology Alternatives: 6 Similar Picks Compared
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The timetec ddr4 2666 4gb replacement synology alternatives list helps you find compatible memory for specific NAS units. This original module provides a precise drop-in solution for older Synology devices like the RS820 series. It offers 4GB of capacity at 2666MHz with a non-ECC SODIMM form factor. You might need something else if your system requires more than 4GB of total memory. Single-stick replacements often limit future expansion compared to dual-rank kits.
We selected these 6 picks because their specifications overlap with the original product. Each option shares the 2666MHz speed and SODIMM shape, ensuring basic compatibility. However, capacities vary significantly, ranging from 16GB to 64GB kits. You may prefer higher capacity for demanding tasks or different brands for specific warranty needs. This guide compares these alternatives strictly by their published specs to help you choose the right fit for your hardware.
Our top pick: Timetec 4GB DDR4-2666 SODIMM.
How the alternatives compare
Timetec 16GB DDR4 2666MHz SODIMM RAM
This Timetec module upgrades you from 4GB to 16GB in a single stick. It maintains the same 2666MHz speed and non-ECC SODIMM form factor as the original. You gain four times the capacity for handling more files or virtual machines. The CL19 latency and 1.2V voltage remain consistent with standard DDR4 specifications. It is ideal if your NAS supports larger single-stick upgrades. You lose the exact physical match for Synology’s original 4GB part but gain significant performance headroom. Choose this if you need more memory without switching brands or speeds.
Adamanta 32GB DDR4 2666MHz SODIMM
The Adamanta kit offers 32GB total capacity, split into two 16GB sticks. It matches the 2666MHz speed and non-ECC profile of the original Timetec. You double the capacity of the next highest single-stick option. The CL19 latency is identical to the reference model. This kit is designed for laptops and mini PCs rather than NAS units. You give up the single-stick simplicity of the original. It is best for users who need maximum capacity in systems with multiple memory slots. The form factor remains SODIMM, ensuring physical compatibility with standard slots.
G.SKILL Ripjaws 16GB DDR4 2666MHz Laptop RAM
G.SKILL provides a 16GB kit with two 8GB sticks. It runs at 2666MHz with CL19 latency and non-ECC support. This configuration offers double the capacity of the original 4GB stick. The dual-stick setup may require two available slots in your device. It is optimized for laptop upgrades rather than NAS replacements. You lose the single-stick convenience of the Timetec original. This pick suits users who need more memory than 4GB but do not require the highest capacity options. The SODIMM form factor ensures it fits standard laptop memory bays.
G.SKILL Ripjaws 32GB DDR4 2666MHz SODIMM
This G.SKILL module delivers 32GB in a single stick. It matches the 2666MHz speed and non-ECC characteristics of the original Timetec. You get eight times the capacity in one module. The CL19 latency remains standard for this speed class. It is designed for laptops and mini PCs that support high-capacity single sticks. You sacrifice the exact Synology compatibility of the original part. This option is best for users who need maximum memory in a single slot. The SODIMM form factor is consistent with other laptop memory solutions.
Timetec 32GB DDR4 2666MHz SODIMM Kit
Timetec offers a 32GB kit with two 16GB sticks. It maintains the 2666MHz speed and non-ECC SODIMM form factor. You gain eight times the capacity of the original single stick. The CL19 latency and 1.2V voltage are identical to the reference model. This kit is suited for laptops and mini PCs. You lose the single-stick simplicity and specific NAS compatibility of the original. It is ideal for users who need high capacity and have multiple memory slots. The brand consistency may simplify warranty claims if you already use Timetec products.
OWC 64GB (8x8GB) DDR4 2666MHz SODIMM
OWC provides a massive 64GB kit consisting of eight 8GB sticks. It runs at 2666MHz with non-ECC support. This configuration is designed for systems with eight memory slots. You gain sixteen times the capacity of the original 4GB stick. The form factor is SODIMM, but the kit requires multiple slots. You lose the simplicity of a single-stick upgrade. This pick is best for high-end workstations or servers with extensive memory expansion needs. It is not suitable for standard NAS units or laptops with limited slots. The capacity is exceptional for memory-intensive tasks.
Quick picks
Our 7 picks
Timetec 4GB DDR4-2666 SODIMM
Best for: Replacing 4GB sticks in older Synology NAS
- Total Capacity
- 4GB
- Memory Speed
- 2666MHz
- CAS Latency
- CL19
- Voltage
- 1.2V
- Module Configuration
- 1x4GB
- Form Factor
- SODIMM
View on Amazon: Timetec 4GB DDR4-2666 SODIMM Affiliate link
This Timetec module is a direct replacement for Synology D4NESO-2666-4G memory. It operates at 2666MHz with 4GB capacity on a 260-pin SODIMM form factor. The chip uses non-ECC unbuffered technology at 1.2V with CL19 latency. It fits select RS, DS, and DVA series NAS devices. You should choose this if you need a single stick upgrade for older 2018 or 2019 models.
Pros
- Matches Synology D4NESO-2666-4G specifications exactly
- 2666MHz speed with 4GB capacity
- Compatible with RS820RP+, DS920+, and DS1618+ models
- Lifetime warranty included from purchase date
Cons
- Only 4GB capacity limits total system memory
- Single stick configuration restricts dual-channel benefits
- Limited to specific older NAS generations
Good fit if
- You need a direct replacement for a failed 4GB stick
- You own a compatible 2018 or 2019 Synology NAS
- You require non-ECC unbuffered memory for basic tasks
Skip if
- You need more than 4GB of RAM per stick
- You want to upgrade to 32GB or 64GB kits
- You have a newer NAS requiring higher density modules
Verdict: Timetec DDR4-2666 4GB SODIMM is a precise drop-in replacement for specific older Synology NAS units. It suits users who need a single low-capacity stick for basic storage operations rather than high-performance computing.
Timetec 16GB DDR4 2666MHz SODIMM RAM
Best for: Single-stick 16GB laptop upgrades
- Total Capacity
- 16GB
- Memory Speed
- 2666MHz
- CAS Latency
- CL19
- Voltage
- 1.2V
- Module Configuration
- 1x16GB
- Form Factor
- SODIMM
View on Amazon: Timetec 16GB DDR4 2666MHz SODIMM RAM Affiliate link
This Timetec module offers 16GB of DDR4 memory running at 2666MHz. It uses a standard 1.2V voltage and CL19 latency. The 260-pin SODIMM form factor fits laptops, mini PCs, and all-in-one systems. You get a single non-ECC stick. It is a straightforward plug-and-play upgrade for systems needing a moderate capacity boost without the complexity of dual-rank kits.
Pros
- 16GB single-module capacity
- 2666MHz memory speed
- 1.2V low voltage operation
- CL19 CAS latency
- 260-pin SODIMM form factor
Cons
- Single module limits multi-channel performance
- Non-ECC support lacks error correction
- Higher latency than faster kits
Good fit if
- You need a single 16GB stick for a laptop or mini PC
- You are upgrading an older system that supports DDR4-2666
- You prefer a simple plug-and-play installation
Skip if
- You require error-correcting code (ECC) memory
- You need a dual-channel 32GB kit from the start
- You are building a desktop PC with standard DIMM slots
Verdict: Timetec 16GB DDR4-2666 SODIMM provides reliable single-stick capacity for laptops and mini PCs. It fits users who need a straightforward 16GB upgrade without the complexity of dual-rank configurations.
Adamanta 32GB DDR4 2666MHz SODIMM
Best for: Laptops needing high capacity memory
- Total Capacity
- 32GB
- Memory Speed
- 2666MHz
- CAS Latency
- CL19
- Voltage
- 1.2v
- Module Configuration
- 2x16GB
- Form Factor
- SODIMM
View on Amazon: Adamanta 32GB DDR4 2666MHz SODIMM Affiliate link
This Adamanta kit gives you 32GB of DDR4 memory in a 2x16GB configuration. It runs at 2666MHz with 1.2V voltage and CL19 latency. The modules are non-ECC and unbuffered, designed for laptops. Every module is tested by the manufacturer before shipping. You get a limited lifetime warranty and free technical support. This kit offers high capacity for systems that need more room to breathe.
Pros
- 32GB total capacity via 2x16GB modules
- 2666MHz speed with 1.2V operation
- Fully tested by the manufacturer
- Limited lifetime warranty included
Cons
- Higher CL19 latency than some competitors
- Non-ECC configuration limits server use
- Warranty excludes major OEM brands
Good fit if
- You need maximum capacity for a laptop
- You want a tested kit with warranty
- You use standard DDR4-2666 systems
Skip if
- You require ECC memory for stability
- You need lower latency for gaming
- You prefer a single stick upgrade
Verdict: Adamanta 32GB DDR4-2666 SODIMM Kit provides ample memory for demanding laptop tasks. It suits users who prioritize capacity and warranty coverage over low latency timings.
G.SKILL Ripjaws 16GB DDR4 2666MHz Laptop RAM
Best for: Laptop upgrades from 4GB to 16GB
- Total Capacity
- 16GB
- Memory Speed
- 2666MT/s
- CAS Latency
- CL19
- Voltage
- 1.20V
- Module Configuration
- 2x8GB
- Form Factor
- SO-DIMM
View on Amazon: G.SKILL Ripjaws 16GB DDR4 2666MHz Laptop RAM Affiliate link
This G.SKILL Ripjaws kit provides 16GB of DDR4 memory in a 2x8GB configuration. It runs at 2666MT/s with CL19 latency and 1.20V voltage. The non-ECC SO-DIMM form factor fits standard laptops and notebooks. You should use this upgrade if you need more capacity than a single 4GB stick offers. It is a solid option for general computing tasks that require reliable, matched memory pairs.
Pros
- 16GB total capacity in a 2x8GB matched kit
- 2666MT/s speed with CL19 latency
- 1.20V operating voltage for efficiency
- Non-ECC DDR4 SO-DIMM form factor
Cons
- Lower CL19 latency compared to faster kits
- 16GB capacity is smaller than 32GB or 64GB options
- Single stick size is only 8GB per module
Good fit if
- You need to upgrade a laptop from 4GB or 8GB to 16GB
- You want a matched kit for stable dual-channel performance
- You require standard non-ECC memory for general use
Skip if
- You need 32GB or 64GB of total memory
- You require ECC memory for server workloads
- You are looking for the lowest possible latency timings
Verdict: G.SKILL Ripjaws DDR4 16GB 2666MHz Kit is a practical upgrade for users who need double the capacity of a single 4GB stick without moving to high-end server memory. It fits laptops that support standard DDR4 SO-DIMM modules.
G.SKILL Ripjaws 32GB DDR4 2666MHz SODIMM
Best for: laptop upgrades needing 32GB
- Total Capacity
- 32GB
- Memory Speed
- 2666MT/s
- CAS Latency
- CL19
- Voltage
- 1.20V
- Module Configuration
- 2x16GB
- Form Factor
- SO-DIMM
View on Amazon: G.SKILL Ripjaws 32GB DDR4 2666MHz SODIMM Affiliate link
This G.SKILL kit provides 32GB of DDR4 memory across two 16GB SO-DIMM sticks. It runs at 2666MT/s with CL19 latency and 1.20V voltage. The non-ECC design targets laptops and notebooks. You need matched kits for stability. It suits users upgrading older systems who need high capacity without ECC complexity.
Pros
- 32GB total capacity via 2x16GB configuration
- 2666MT/s memory speed
- 1.20V operating voltage
- CL19 CAS latency
Cons
- Non-ECC architecture limits server use
- CL19 latency is slower than tighter timings
- Requires matched kit pairing for stability
Good fit if
- You need 32GB for heavy multitasking
- You use a laptop with SO-DIMM slots
- You want non-ECC memory for standard PCs
Skip if
- You require ECC error correction
- You need a single 32GB stick
- You want faster than 2666MT/s speeds
Verdict: G.SKILL Ripjaws 32GB DDR4-2666 delivers solid capacity for laptop upgrades. It fits users needing 32GB without ECC requirements.
Timetec 32GB DDR4 2666MHz SODIMM Kit
Best for: Laptops and mini PCs needing 32GB capacity
- Total Capacity
- 32GB
- Memory Speed
- 2666MHz
- CAS Latency
- CL19
- Voltage
- 1.2V
- Module Configuration
- 2x16GB
- Form Factor
- SODIMM
View on Amazon: Timetec 32GB DDR4 2666MHz SODIMM Kit Affiliate link
This Timetec kit provides 32GB of DDR4 memory across two 16GB modules. It runs at 2666MHz with CL19 latency and operates at 1.2V. The 260-pin SODIMM form factor makes it suitable for laptops, mini PCs, and all-in-one systems that support this slot type. It is non-ECC and unbuffered. You get a lifetime warranty and US-based support.
Pros
- 32GB total capacity via 2x16GB modules
- 2666MHz speed with CL19 latency
- 1.2V low voltage operation
- 260-pin SODIMM form factor
- Limited lifetime warranty
Cons
- Non-ECC memory lacks error correction
- CL19 latency is standard for this speed
- Not compatible with desktop DIMM slots
Good fit if
- You need 32GB of RAM for a laptop
- You own a mini PC with SODIMM slots
- You want a lifetime warranty for peace of mind
Skip if
- You require ECC memory for server stability
- You are upgrading a desktop computer
- You need higher latency performance than CL19
Verdict: Timetec 32GB DDR4-2666 SODIMM Kit fits users needing high capacity in a compact laptop or mini PC form factor. It delivers reliable 2666MHz performance with a strong warranty backing.
OWC 64GB (8x8GB) DDR4 2666MHz SODIMM
Best for: 8-slot systems needing 64GB capacity
- Total Capacity
- 64GB
- Memory Speed
- 2666MHz
- CAS Latency
- CL19
- Voltage
- 1.2V
- Module Configuration
- 8x8GB
- Form Factor
- SODIMM
View on Amazon: OWC 64GB (8x8GB) DDR4 2666MHz SODIMM Affiliate link
This OWC kit provides 64GB of DDR4-2666 memory in an 8x8GB configuration. It uses Non-ECC SODIMM modules running at 1.2V with CL19 latency. The design meets JEDEC standards for compatibility with devices like Synology NAS units. You get a lifetime warranty and tech support. This high-capacity upgrade suits users needing maximum memory for heavy multitasking or virtualization tasks in compact systems.
Pros
- 64GB total capacity via 8x8GB modules
- DDR4-2666MHz speed with CL19 latency
- Limited lifetime warranty included
- JEDEC compliant for broad compatibility
- 1.2V low voltage operation
Cons
- 8-module configuration requires 8 available slots
- Non-ECC memory lacks error correction
- Higher latency than faster DDR4 kits
Good fit if
- You need 64GB of RAM for intensive workloads
- Your device supports 8 SODIMM slots
- You want a lifetime warranty for peace of mind
Skip if
- Your system only has 2 or 4 memory slots
- You require ECC memory for data integrity
- You need a lower capacity like 16GB or 32GB
Verdict: OWC 64GB DDR4-2666 8x8GB SODIMM fits users with 8-slot systems who need maximum memory capacity and long-term warranty coverage.
Specifications side by side
| Spec | Timetec 4GB DDR4-2666 SODIMM | Timetec 16GB DDR4 2666MHz SODIMM RAM | Adamanta 32GB DDR4 2666MHz SODIMM | G.SKILL Ripjaws 16GB DDR4 2666MHz Laptop RAM | G.SKILL Ripjaws 32GB DDR4 2666MHz SODIMM | Timetec 32GB DDR4 2666MHz SODIMM Kit | OWC 64GB (8x8GB) DDR4 2666MHz SODIMM |
|---|---|---|---|---|---|---|---|
| Total Capacity | 4GB | 16GB | 32GB | 16GB | 32GB | 32GB | 64GB |
| Memory Speed | 2666MHz | 2666MHz | 2666MHz | 2666MT/s | 2666MT/s | 2666MHz | 2666MHz |
| CAS Latency | CL19 | CL19 | CL19 | CL19 | CL19 | CL19 | CL19 |
| Voltage | 1.2V | 1.2V | 1.2v | 1.20V | 1.20V | 1.2V | 1.2V |
| Module Configuration | 1x4GB | 1x16GB | 2x16GB | 2x8GB | 2x16GB | 2x16GB | 8x8GB |
| Form Factor | SODIMM | SODIMM | SODIMM | SO-DIMM | SO-DIMM | SODIMM | SODIMM |
| ECC Support | Non-ECC | Non-ECC | Non-ECC | Non-ECC | Non-ECC | Non-ECC | Non-ECC |
| Compatible Device | not stated | PC, Laptop | Laptop | Laptop | Laptop | PC, Laptop | not stated |
| Size | 2666MHz 4GB | 16GB | (2x16GB) 32GB | 16GB | 32GB | not stated | 64GB kit (8 x 8GB) |
| Dimensions | 3.74 × 0.24 × 1.77 inches | not stated | 2.63 × 0.13 × 1.13 inches | 6 × 5.2 × 0.2 inches | 23.6 × 23.6 × 33.5 inches | not stated | not stated |
| Weight | not stated | not stated | not stated | 1.7 ounces | not stated | not stated | not stated |
| Color | Gold | Black | 2666MHz | not stated | Black | not stated | not stated |
| Model | not stated | 76HN26NUS1R | AM52SE22G64-SQ | F4-2666C19D-16GRS | F4-2666C19D-32GRS | not stated | OWC2S6D41R8064K |
Frequently asked questions
Is this 4GB stick compatible with modern Synology NAS models?
The Timetec 4GB DDR4-2666 is designed as a replacement for specific older Synology NAS units, such as the RS820 series. It may not work with newer devices that require higher capacities or different speeds. You should verify your NAS model against the original module specifications before purchasing to ensure a precise drop-in fit.
Does this memory module support ECC for data integrity?
No, the Timetec 4GB DDR4-2666 SODIMM is a Non-ECC module. It does not include error-correcting code features. This makes it suitable for basic storage operations in older NAS units where high-performance computing is not the primary goal. You will need ECC-supported modules if your system requires data error correction.
Can I use this RAM in a standard laptop instead of a NAS?
While the form factor is SODIMM, this specific 4GB module is optimized for older Synology NAS replacements. Other options in this list, like the Timetec 16GB or G.SKILL Ripjaws 16GB, are explicitly noted as compatible with PCs and laptops. You should choose those alternatives for better laptop upgrade results.
What is the physical size of the 4GB SODIMM module?
The Timetec 4GB DDR4-2666 SODIMM measures 3.74 inches in length, 1.77 inches in height, and 0.24 inches in width. These dimensions are standard for SO-DIMM slots found in compact devices like older NAS units and laptops. The gold-colored PCB fits into standard memory slots without requiring additional adapters.
What is the operating voltage for these DDR4 modules?
The listed DDR4-2666 modules, including the Timetec and G.SKILL options, operate at 1.2V. This is the standard voltage for DDR4 SODIMM memory, ensuring compatibility with systems designed for low-power operation. You do not need to adjust voltage settings manually, as the module adheres to standard DDR4 specifications.
How does the 16GB upgrade compare to the original 4GB stick?
Upgrading from the 4GB original to a 16GB single stick, such as the Timetec 16GB DDR4-2666, provides four times the capacity. It maintains the same 2666MHz speed and non-ECC SODIMM form factor. This allows you to handle more files or run virtual machines without changing the physical slot requirements or speed settings.
Are there options for 32GB capacity in this list?
Yes, the list includes two 32GB options: the Adamanta 32GB Kit and the G.SKILL Ripjaws 32GB SODIMM. Both operate at 2666MHz with CL19 latency and Non-ECC support. These are suitable for laptops needing high capacity. The Timetec 32GB Kit is also available for mini PCs, offering reliable performance with a strong warranty.
What CAS latency do these 2666MHz modules use?
The Timetec 16GB, Adamanta 32GB, G.SKILL Ripjaws 16GB, and G.SKILL Ripjaws 32GB modules all feature CL19 latency. This timing is standard for DDR4-2666 memory in this form factor. The 4GB module does not list specific latency in the provided data, but it matches the 2666MHz speed of the other listed items.