Technical Specifications
RDIMM for QNAP ES1686dc
Module Density: 16GB
Form Factor: RDIMM
Technology Speed: DDR4 2666MHz PC4-21300
Rank: 2Rx8
Voltage: 1.2V
ECC: ECC
Buffered: Registered
Compatible With: QNAP - ES1686dc
Compatible Machines: ES1686dc
Description
NEMIX RAM memory upgrade for the QNAP ES1686dc Dual-Controller Enterprise NAS: 16GB / 32GB / 64GB DDR4-2666 PC4-21300 ECC RDIMM modules, sold as single modules and matched kits of up to 8, selected as drop-in, compatibility-tested upgrades. 1.2V, 288-pin, Registered (buffered), ECC, JEDEC-compliant for stable 24/7 NAS operation. Platform: Intel Xeon D-2142IT (per controller). 8 RDIMM slots per controller (16 total); populate both controllers identically. RDIMM and LRDIMM cannot be mixed. Researched, matched, and compatibility-tested by NEMIX RAM, a US-based memory specialist since 1993, and backed by a lifetime warranty. Volume, reseller, and B2B pricing available on request — contact our sales team for a quote.