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NEMIX RAM 16GB (1X16GB) DDR4 2666MHz PC4-21300 2Rx8 1.2V CL19 288-PIN ECC Unbuffered UDIMM Memory Compatible with Synology D4EC-2666-16G NAS Memory
NEMIX RAM

NEMIX RAM 16GB (1X16GB) DDR4 2666MHz PC4-21300 2Rx8 1.2V CL19 288-PIN ECC Unbuffered UDIMM Memory Compatible with Synology D4EC-2666-16G NAS Memory

Bottom line: The NEMIX RAM 16GB is a specs-and-price decision rather than a crowd-consensus one in the memory & ram category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

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

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SpecPicks Verdict

SpecPicks scored NEMIX RAM 16GB (1X16GB) DDR4 2666MHz PC4-21300 2Rx8 1.2V CL19… 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 Unbuffered ECC, 1.2V, CL19, 288-pin. The precise rank, voltage, and speed your system's memory controller expects, so it's recognized at full capacity and posts correctly.
  • VERIFIED FITMENT — Direct replacement for D4EC-2666-16G; compatible with Xeon W-2100, Xeon W-3200, EPYC Rome. Spec-matched to your board's memory-population rules.
  • ENTERPRISE STABILITY — On-module ECC catches and corrects single-bit errors on the fly — stopping silent data corruption and crashes before they reach your work — on a standard unbuffered DIMM that drops into ECC-capable workstation and entry-server boards.
  • CHECK YOUR CONFIG — Server and motherboard memory support varies by model. Consult your system or motherboard manual for supported capacities, approved DIMM population order, and installation steps before purchase.
  • LIFETIME SUPPORT — Backed by a lifetime replacement warranty and free US-based technical support.

Full Specifications

BrandNEMIX RAM
Weight16g
Voltage1.2 volts
RAM Size16 GB
Unit Count1 Count
Form FactorDIMM
Memory Speed2666 MHz
Number of Pins288
Number of Items1
Memory GenerationDDR4
Compatible DevicesSA3200D, RackStation RS4021xs+, RackStation RS3621xs+, RackStation RS3621RPxs, RackStation RS3618xs, RackStation RS1619xs+, RackStation RS2421+​/​RS2421RP+, RackStation RS2821RP+, UC3200
Data Transfer Rate2666 MHz
Memory Form FactorUDIMM
Additional FeaturesEcc, Lightweight
Computer Memory Size16 GB
Warranty DescriptionLifetime Warranty
RAM Memory TechnologyDDR4
Column Address Strobe Latency19

Ready to buy?

NEMIX RAM 16GB (1X16GB) DDR4 2666MHz PC4-21300 2Rx8 1.2V CL19 288-PIN ECC Unbuffered UDIMM Memory Compatible with Synology D4EC-2666-16G NAS Memory 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.

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NEMIX RAM 16GB (1X16GB) DDR4 2666MHz PC4-21300 2Rx8 1.2V CL19 288-PIN ECC Unbuffered UDIMM Memory Compatible with Synology D4EC-2666-16G NAS Memory
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