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Green circuit board SODIMM module with black memory chips and gold edge connector

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 ECC SODIMM CL19 1.2V Synology DS3622xs+ memory upgrade

SKU CH-AZHJ-SC219

16 GB DDR4 ECC SODIMM at 2666 MHz CL19 for Synology DS3622xs+ NAS upgrade

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • ECC protection guards data integrity in Synology DS3622xs+ NAS
  • 16 GB DDR4 2666 CL19 adds capacity for heavy workloads
  • 2 V operation reduces power draw in always-on systems
  • 260-pin SODIMM fits directly into compatible Synology bays
  • Major OEM chips deliver tested stability for mission-critical use

Synology DS3622xs+ ECC SODIMM

This 16 GB DDR4 2666 module is built specifically for the Synology DiskStation DS3622xs+. It adds ECC unbuffered memory to a NAS that relies on data integrity for file services and virtualization workloads.

Capacity and headroom

The single 16 GB stick raises total memory in 16 GB increments up to the platform limit. ECC protection covers single-bit errors during sustained workloads. The module runs out of headroom when the NAS reaches its maximum supported capacity or when applications demand bandwidth beyond DDR4 2666.

260-pin unbuffered layout

Samsung, Micron or Hynix chips operate at 1.2 V without a heat spreader, keeping the form factor slim for the DS3622xs+ SODIMM slots. CL19 latency at 2666 MT/s matches the system memory controller. The 2Rx8 organization fits the platform memory topology. No extra cables or brackets are required.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $119.99
Cheaper than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.50 per GB
Cheaper than about 54% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSynology Compatible Series NAS Memory
Model nameSynology DDR4 2666 MHz ECC Unbuffered SODIMM
Part numberMSE21300-628K1
Total capacity16 GB
Product type260-PIN DDR4 ECC SODIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology
In the box
Included items16 GB (1 × 16 GB) DDR4 2666 MHz PC4-21300 2Rx8 1.2 V CL19 260-PIN ECC Unbuffered SODIMM

Questions about this item

Will this 260-pin DDR4 2666 ECC SODIMM work alongside the memory already installed in my DS3622xs+?

This module is built to the DDR4 2666 (PC4 21300) specification with ECC and unbuffered operation. The DS3622xs+ will set the final speed to match the slowest module present, so mixed speeds will run at the lowest common rate.

How can I confirm the 16 GB ECC SODIMM is recognised and running at CL19 1.20 V after installation?

Open DSM Control Panel, choose Info Center and then System Report. The memory section will show 16 GB detected, ECC enabled, 2666 MT/s data rate and CL19 timings at the standard 1.20 V.

What comes in the package and is anything else required to fit it in the DS3622xs+?

The box contains one 16 GB 260-pin DDR4 2666 ECC unbuffered SODIMM (2Rx8, CL19, 1.20 V). No extra brackets, cables or tools are needed; the module slots directly into the NAS memory sockets.

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