Best Synology Memory in 2026
Daisy
Last Updated: Jul 17, 2026
Daisy
Last Updated: Jul 17, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ❌ |
Product 1: Up to 471/225 MB/s sequential read/write throughput makes file operations quick and efficient
Product 1: Leverage built-in file and photo management, dataprotection, virtualization, and surveillance solutions
Product 1: Two 1GbE ports for simple integration into existingenvironments with optional 10GbE connectivity totackle more specialized, bandwidth-heavy applications
Product 1: Add 5 extra drive bays with one DX517 expansion unitfor a maximum of 7 storage drives
Product 2: DDR4 ECC Unbuffered SODIMM
Product 2: Please check Synology website for compatible models
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
DDR4 non-ECC unbuffered SO-DIMM
Applied Models: RS820RP+, RS820+, DS2419+, DS1819+, DS1618+, DVA3219
System ram type: ddr4_sdram
Applied Models:20 series:RS820RP+, DS920+, DS720+, DS420+, DS220+,19 series:DS2419+, DS1819+,18 series:DS1618+
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ✅ | ✅ | ✅ |
Capacity: 8GB ( 1x 8GB Module ) | Type: DDR4 SODIMM ( 260-Pin ) | Memory RAM for Laptop, Notebook, & AIO Computers
Speed: DDR4 2400 MHz ( PC4-19200 / PC4-2400T ) | ECC Type: Non-ECC Unbuffered | Rank: 2Rx8 ( Dual Rank x8 ) | Voltage: 1.2V
Designed for select Laptop, Notebook, & All in One Computers (not limited to) Acer, Alienware, Apple, ASRock, ASUS, Dell, DFI, Fujitsu, Gateway, Gigabyte, HP, HP Compaq, Intel, Lenovo, LG, MSI, Panasonic, QNAP, Samsung, Sony, Supermicro, Synology & Toshiba (DDR4 Capable) Models
All modules undergo quality assurance testing to ensure dependable and reliable performance | Please verify the supported memory (RAM) specifications of your system prior to purchase to ensure compatibility
A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Timetec International Inc | 9.95 | ❌ | ❌ | ❌ |
Replacement for Synology D4NESO-2666-4G SODIMM RAM (DDR4 2666MHz PC4-21300 260 Pin Unbuffered Non-ECC 1.2V CL19 Single Rank 1Rx8 based 512x8)
Compatible with 20 series: RS820RP+, RS820+, DS920+, DS720+, DS420+, DS220+
Compatible with 19 series: DS2419+, DS2419+II, DS1819+, DVA3219
Compatible with 18 series: DS1618+
Guaranteed Lifetime warranty from Purchase Date and Free technical support based on United States
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ✅ | ✅ | ✅ |
16GB Kit ( 2x 8GB Modules ) | DDR3 1600 MHz PC3-12800 / 12800S | DDR3 SO-DIMM ( 204-Pin ) | Non-ECC Unbuffered | 2Rx8 - Dual Rank x8 | 1.5V - DDR3 Standard Voltage
High performance Memory RAM upgrade designed for Laptop, Notebook, & All-in-One Computers
Easy to install and compatible for select (not limited to) Acer, Alienware, Apple, ASRock, ASUS, Dell, DFI, Fujitsu, Gateway, Gigabyte, HP, HP Compaq, Intel, Lenovo, LG, MSI, Panasonic, QNAP, Samsung, Sony, Supermicro, Synology & Toshiba Models
All modules undergo quality assurance testing to ensure dependable and reliable performance | Please verify the supported memory (RAM) specifications of your system prior to purchase to ensure compatibility
A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ✅ | ✅ | ✅ |
A-Tech RAM memory replacement compatible for Synology D4ECSO-2666-16G, D4ES01-16G
Compatible for Synology NAS DiskStation, RackStation, FlashStation, & NVR DVA Servers models: DS1522+, DS1618+, DS1621+, DS1621xs+, DS1819+, DS1821+, DS2419+, DS2419+II, DS2422+, DS3018xs, DS3617xs, DS3617xsII, DS3622xs+, DVA3219, DVA3221, FS1018, RS1221+, RS1221RP+, RS822+, RS822RP+
32 GB RAM Kit (2 x 16GB Modules); DDR4 SO-DIMM 260-Pin; Speeds up to 2666/2667-MHz, PC4-21300 (PC4-2666V)
ECC Unbuffered; 2Rx8 (Dual Rank x8); JEDEC DDR4 standard 1.2V
A RAM memory upgrade expands your system's available memory resource, improving performance, boosting speeds, and allowing you to take on more while maintaining a smooth experience
All A-Tech memory modules undergo stringent quality control testing to ensure dependable and reliable performance
Backed by A-Tech's Limited Lifetime Warranty and supported by our knowledgeable Tech Team available to help before and after your purchase
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ✅ | ✅ | ✅ |
Memory Size: 4GB (2x 2GB Modules) | Memory Type: DDR2 SODIMM Memory RAM for Laptop, Notebook, & All-in-One Computers
Speed: DDR2 800MHz PC2-6400 | ECC Type: Non-ECC Unbuffered | Pin Count: 200-Pin | Voltage: 1.8V
Designed for Select (not limited to) Acer, Alienware, Apple, ASRock, ASUS, Dell, DFI, Fujitsu, Gateway, Gigabyte, HP, HP Compaq, Intel, Lenovo, LG, MSI, Panasonic, QNAP, Samsung, Sony, Supermicro, Synology & Toshiba Laptop, Notebook, & All-in-One Computer Models
All A-Tech modules undergo stringent quality assurance testing to ensure high performance and reliability
A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| V-color Technology Inc. | 6.07 | ✅ | ✅ | ✅ |
Product Spec: 32GB (2 x 16GB) | DDR4 2666MHz (PC4-21300) | CL19 | ECC SO-DIMM | 1.2V
Especially designed for micro-servers, workstations, networking platforms and embedded systems. Support Synology NAS 21 Series.
100% in house tested undergo rigorous quality control
Strictly audited DRAM chips with top quality 10-layers of PCBs
Limited Lifetime warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| nvtek | 9.76 | ✅ | ✅ | ✅ |
Capacity 32GB, 2x16 Gigabyte Speed DDR4-2666 Mhz, PC4-21300, ECC SODIMM, Rank 2Rx8, Compatible with Synology Part D4ECSO-2666-16G,
Compatible with the following Synology machines: DS3617xsII; DS1621+; DS1821+; DS2419+II. Made from the highest quality components, NEMIX RAM products are not only reliable and durable but are specifically engineered for performance.
A memory upgrade is one of the most affordable and simple ways to increase system performance. The amount of memory in your system plays a critical role in the speed of your machine. Improve system responsiveness, and increase your system's ability to handle larger workloads, access data faster by upgrading your internal memory.
Install Easily, no computer skills required, with just a screwdriver, the owner’s manual, and a few minutes, you can install memory – no computer skills necessary.
Here at NEMIX we pride ourselves on all our products and provide a Lifetime Replacement Warranty for all orders along with customer service support before, during, & after your purchase.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| nvtek | 9.76 | ✅ | ✅ | ✅ |
NEMIX RAM DDR4 ECC SODIMM Memory Upgrade for Micro Servers, Specific Workstations, NAS, Synology, Switches, Networking Platforms
Upgrade Consists of 2 pcs of 16GB Memory Module Module DDR4 260-pin ECC SODIMM
DDR4-2666Mhz Technology ( PC4-21300 ) operating at standard 1.2V - 100% JEDEC Compliant
ECC Unbuffered SODIMM manufactured using multi-layer density PCB with gold lead and major chipset by Micron, Samsung, or Hynix.
Built by NEMIX RAM with highest level of quality backed by Lifetime Replacement Warranty perfect for home or business applications. Compatible with all specfic ECC SODIMM boards only. This is not standard Laptop memory!
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Packaging dimensions (L x W x H): 1.4 cm x 9.0 cm x 12.8 cm
Number of packs: 1
Country of origin: China
System RAM type: ddr4_sdram
Synology Memory Expansion 4GB DDR4
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MemoryMasters | 7.95 | ❌ | ❌ | ❌ |
Crucial 64GB DDR4 memory bundle including 2 CT32G4RFD4266 RDIMMs.
Compatible with most servers by brands such as Dell, HP, Lenovo, SuperMicro, Synology, IBM, and many more!
Memory Included: 64GB (2 x 32GB) DDR4 PC4-21300 2666MHz Registered Server Memory
CAS Latency: CL19; Pins: 288 Pin
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| nvtek | 9.76 | ✅ | ✅ | ✅ |
NEMIX RAM DDR4 ECC SODIMM Memory Upgrade for Micro Servers, Specific Workstations, NAS, Synology, Switches, Networking Platforms
Upgrade Consists of 4 pcs of 32GB Memory Module Module DDR4 260-pin ECC SODIMM
DDR4-2666Mhz Technology ( PC4-21300 ) operating at standard 1.2V - 100% JEDEC Compliant
ECC Unbuffered SODIMM manufactured using multi-layer density PCB with gold lead and major chipset by Micron, Samsung, or Hynix.
Built by NEMIX RAM with highest level of quality backed by Lifetime Replacement Warranty perfect for home or business applications. Compatible with all specfic ECC SODIMM boards only. This is not standard Laptop memory!
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Gigastone America | 9.89 | ✅ | ✅ | ✅ |
[Capacity] 16GB (4 x 4GB Module), Type: DDR3 UDIMM, Memory RAM for Desktop, PC
[Speed & Spec] DDR3 1600MHz (PC3-12800), ECC type: Non ECC, unbuffered DIMM, Voltage:1.5V , Pin Count: 240 Pin
[Compatibility] Compatible with Desktop Computers (not limited to): HP, HP Compaq, Dell, Gateway, Alienware, Lenovo, Intel, Supermicro, Acer, ASUS, Fujitsu, Panasonic, Sony, Toshiba, LG, Samsung, Synology, Gigabyte, MSI, ASRock, DFI, QNAP.
[Caution] Before you make your purchase, please check your computer motherboard model/RAM model/RAM slot/RAM frequency/maximum compatible memory capacity.
[Support] 5-Year warranty and instant online service
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ArchMemory | 6.86 | ❌ | ❌ | ❌ |
Compatible with Synology D4NESO-2666-4G
4GB 260 Pin DDR4-2666 PC4-21300 Sodimm 2666MHz
1.2 volts; Cas Latency 19
Access crucial data faster by upgrading your internal memory
Rugged tier one ic chipsets; built for performance and security
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Bargain PC | 5.52 | ✅ | ✅ | ✅ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| IPC-STORE✅ | 9.83 | ❌ | ❌ | ❌ |
DDR4-2666 ECC unbuffered DIMM 288pin 1.2V RAM
Synology DDR4 Memory Module 8GB
Applied Models: RS4017xs+, RS3618xs, RS3617xs+, RS3617RPxs, RS1619xs+
For expanding your Synology NAS server's memory capacity
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Arch Memory | 8 |
| Synology | 8 |
| A-Tech Components | 6 |
| Nemix Ram | 3 |
| A-Tech | 2 |
| Timetec | 2 |
| Crucial | 1 |
| Gigastone | 1 |
| V-Color Color Your Life | 1 |
We've carried out a comprehensive analysis of 8,887 reviews on memory synology, using our selection criteria to identify the best options in the health & household products. Our findings reveal that most customers typically select memory synology priced around $156.17, with top brands including neuriva, arch memory and synology and timetec
Our team of expert editors reviewed these high-quality items and handpicked the top 17 memory synology for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the health & household products category. These include amazon.com, archmemory, memorybank, ipc-store✅, aventis systems and bargain pc and timetec international inc .
We are dedicated to assisting our users in finding the right memory Products based on their needs, saving them considerable time when choosing which memory synology to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
PickSmartly is dedicated to creating a platform designed to streamline your shopping experience, empowering you to make well-informed purchasing decisions with minimal time and effort. At the heart of our mission is the commitment to earning and maintaining the trust of our users, as we believe this to be fundamental to the services we provide.
When you engage with our websites, services, or tools, we or our approved service providers may utilize cookies to store information. This is done to enhance your user experience by making it more efficient, secure, and tailored to your preferences, as well as for marketing objectives.
We are an Amazon Associate and earn commissions from qualifying purchases. Our participation in the Amazon Services LLC Associates Program, an affiliate advertising initiative, provides us with a means to generate income through links to Amazon.com and its affiliated websites. Please note that Amazon, Amazon Prime, their logos, and the Amazon Prime logo are registered trademarks of Amazon.com, Inc., or its associated companies.
