⚡ Upgrade your system’s brainpower — faster, smarter, stronger!
The A-Tech 4GB DDR4 2666MHz PC4-21300 ECC SODIMM is a high-performance, error-correcting RAM module tailored for microservers, workstations, and networking platforms. Operating at an efficient 1.2V with a compact 260-pin SO-DIMM design, it delivers reliable, stable memory upgrades that reduce bottlenecks and boost multitasking capabilities. Backed by a limited lifetime warranty and US-based support, this module is the savvy professional’s choice for future-proofing critical systems.
| ASIN | B0DYQDFD35 |
| Best Sellers Rank | #307 in Computer Memory |
| Brand | A-Tech |
| Color | 1 Module |
| Customer Reviews | 4.5 4.5 out of 5 stars (32) |
| Date First Available | February 27, 2025 |
| Item Dimensions LxWxH | 2.74 x 1.18 x 0.15 inches |
| Item Weight | 0.5 ounces |
| Item model number | AT4G1D4S2666ES8N12V |
| Manufacturer | A-Tech |
| Product Dimensions | 2.74 x 1.18 x 0.15 inches |
| RAM | 4 GB DDR4 |
| Voltage | 1.2 Volts |
R**N
Works great in a Synology DS1621+
I got this RAM to upgrade my Synology NAS from it's factory installed 4GB to 64GB. This is a much cheaper way to upgrade the RAM than buying Synology RAM and works just as well. It is ECC RAM, just like the factory RAM. It also allows for a full 64GB rather than the Synology stated limit of 32GB. I noticed a substantial improvement in NAS performance after installing this RAM. I'm very happy and will purchase A-Tech RAM again.
D**P
Compatible with Synology DS NAS
Used to expand the memory on my DS1823XS+, worked like a charm with compatibility script commonly used on the web. The NAS was able to address the full 64GB.
A**E
Works great!
I have ordered seven of the 2x32GB DDR4 RAM modules and they have all worked perfectly. No issues, easy to install and best bang for the buck. I have never heard of A-Tech before this purchase, but they are quality ram modules and my experience has been great! I plan on using them again in the future.
S**O
Works in my Synology NAS
Works great in my Synology DS1821+, passes all memory tests and is fully available to all applications.
D**I
It just works!
Installed this on my DS1621+ and I was expecting to get some kind of warning. But, I was wrong! THIS JUST WORKS. I did not get any warning or error. It's as if my Syno was oblivious of the brand.
H**L
Great for my Synology.
Bought this for a Synology 1522+ and it works perfectly.
T**M
Excellent quality and good benefit for the price
Worked flawlessly on the Synology 723+ !!! The system recognized the both A-TECH 16GB RAM modules immediately, showed 32GB as the total memory installed just after the first NAS boot and the most important, with no warning messages from DSM 7.2. An excellent product at a very good price! Thanks ATECH folks!
C**I
Qnap Upgrade
Received as advertised, functioning and recognized by the system. I bought this sticks to improve the set up on my Qnap TS-473a NAS and working perfectly.
A**R
Wrong packaging? Misplaced labels? Or deliberate cheating? Not sure. I purchased 2 x 16GB RAM and installed in Synology NAS. System shows only 2 x 4GB
G**N
So far working really well in my Synology DS1821+. No issue, no configuration, no fuss. They were detected as soon as the NAS booted up with them in it
R**T
Works on my Synology DS1821+ Been working since April 2024 without any problems.
Trustpilot
3 weeks ago
1 month ago
