16GB 1X16GB DDR4 2666MHz PC4-21300 2Rx8 1.2V CL19 260-PIN ECC Unbuffered SODIMM NEMIX RAM NAS Memory Compatible with Synology DiskStation DS1621xs+
Bottom line: The 16GB 1X16GB DDR4 2666MHz PC4-21300 2Rx8 1.2V CL19 260-PIN ECC is a specs-and-price decision rather than a crowd-consensus one in the memory (ram) category, priced around $157.26 on Amazon as of 2026-10-06. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Backed by NEMIX RAM's warranty and support channels
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
SpecPicks Verdict
SpecPicks scored 16GB 1X16GB DDR4 2666MHz PC4-21300 2Rx8 1.2V CL19 260-PIN ECC… using a rating × review-volume × price-fit model applied to published specs and reviews across the memory (ram) category. NEMIX RAM's memory (ram) lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for memory (ram) of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- EXACT-MATCH UPGRADE — 16GB (1X16GB) DDR4-2666 (PC4-21300), 2Rx8, 1.2V, CL19, 260-pin SODIMM. The memory your Synology or compatible NAS needs, matched to your unit so it's recognized in full and runs reliably.
- VERIFIED FITMENT — The 260-pin SODIMM form factor for NAS units and compact systems that take laptop-style memory — not a desktop DIMM. Check your unit's supported memory and capacity before ordering.
- REAL-WORLD SPEEDUP — More memory means smoother multitasking and more headroom for apps, containers, and concurrent connections — steadier performance when your NAS is under load.
- CHECK YOUR CONFIG — NAS memory support varies by model. Check your unit's compatibility list and supported capacity in the manual or maker's spec page before purchase.
- LIFETIME SUPPORT — Backed by a lifetime replacement warranty and free US-based technical support.
Full Specifications
| Brand | NEMIX RAM |
|---|---|
| Voltage | 1.2 volts |
| RAM Size | 16 GB |
| Form Factor | ECC SODIMM |
| Memory Speed | 2666 MHz |
| Compatible Devices | OEM Factory Direct Pre-Installed Memory, Synology DiskStation DS1621xs+ |
| Additional Features | Compatible with Synology FlashStation, RackStation, NVR DVA Devices utilizing DDR4 ECC SODIMM RAM |
| Computer Memory Size | 16 GB |
| Warranty Description | Lifetime Replacement Warranty |
| RAM Memory Technology | DDR4 ECC SODIMM |
| Column Address Strobe Latency | 19 Nanowatts |
Ready to buy?
16GB 1X16GB DDR4 2666MHz PC4-21300 2Rx8 1.2V CL19 260-PIN ECC Unbuffered SODIMM NEMIX RAM NAS Memory Compatible with Synology DiskStation DS1621xs+ is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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