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ECC SODIMM DDR4-2666 PC4-21300

68 products

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This page lists DDR4-2666 PC4-21300 ECC Unbuffered SODIMM (ECC SO-DIMM) — 260-pin small-outline, 1.2V, ECC error correction for NAS, embedded boards, compact servers and mobile workstations that take SO-DIMM memory. DDR4-2666 runs at 2666MT/s (2666MHz data rate) for 21.3 GB/s of bandwidth per channel.

What is on this page

Single modules from 8GB to 32GB (8GB, 16GB and 32GB), in 1Rx8 and 2Rx8 rank configurations, plus matched kits up to 128GB total. Use the Module Density, Kit and Rank filters to narrow the list, or Shop by System Model to jump straight to modules matched to a specific machine.

Where DDR4-2666 ECC SODIMM is used

DDR4-2666 ECC SODIMM is commonly paired with Intel Xeon E-2100/E-2200 platforms, Supermicro X11 boards, Lenovo and Dell entry towers, and Synology DiskStation and RackStation NAS. On this page the system-matched listings cover Synology. ECC unbuffered memory is only recognized as ECC on boards and CPUs that support it; on a non-ECC board it runs as standard memory.

Choosing the right ECC SODIMM module

ECC SODIMM is physically identical to standard SODIMM but only delivers error correction on hardware that supports it — Synology, ASUSTOR and QNAP publish which models take ECC. Stay within the vendor's stated maximum per slot: a module above the ceiling may not be recognized. Two-slot systems run best with a matched pair. If you are unsure, send us the system model or the OEM part number and we will confirm fitment before you order.

Buying DDR4-2666 ECC SODIMM direct from NEMIX RAM

NEMIX RAM is a US-based server memory specialist since 1993. Every module is researched, matched and compatibility-tested by NEMIX RAM, JEDEC-compliant, and backed by a lifetime warranty. Purchase orders, net terms and volume pricing are available for business, government and education buyers — request a quote with the part numbers or system models you need, or contact our sales team for fitment help.