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Green rectangular circuit board with black memory chips and gold edge connector

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 ECC Unbuffered SODIMM CL19 2Rx8 Synology Compatible memory upgrade

SKU CH-C0Y6-SFP1W

16 GB DDR4 2666 ECC unbuffered SODIMM with CL19 latency for Synology NAS upgrades

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protection guards data integrity on Synology NAS
  • 16 GB DDR4 2666 MHz expands system memory capacity
  • CL19 latency at 1.2 V delivers efficient operation
  • 2Rx8 260-pin unbuffered SODIMM fits compatible Synology bays
  • Major OEM chips ensure reliable performance under load

Synology DDR4 2666 ECC SODIMM

This NEMIX RAM module delivers 16 GB of DDR4 2666 ECC unbuffered memory in a 260-pin SODIMM form factor. It runs at 1.20 V with CL19 latency and a 2Rx8 rank structure using major OEM DRAM chips. The stick is validated for Synology DiskStation and RackStation NAS devices.

Suited for Synology NAS owners needing ECC

It fits users who want error-correcting memory to guard data integrity in a Synology NAS. Builders requiring non-ECC laptop SODIMMs, registered DIMMs, higher speeds, or larger single-module capacities cannot use this part.

260-pin DDR4 ECC unbuffered SODIMM

The 260-pin DDR4 ECC unbuffered SODIMM interface is the single specification that decides compatibility. Only systems accepting this exact module type and voltage will recognise the upgrade.

Highlights

  • ECC protection guards data integrity on Synology NAS
  • 16 GB DDR4 2666 MHz expands system memory capacity
  • CL19 latency at 1.2 V delivers efficient operation
  • 2Rx8 260-pin unbuffered SODIMM fits compatible Synology bays
  • Major OEM chips ensure reliable performance under load

Specifications

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC Unbuffered SODIMM
Part NumberMSE21300-628K1
Capacity16GB
SpeedDDR4 2666 (PC4 21300)
ECCYes
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemSynology
CAS LatencyCL19
Heat SpreaderNo
Type260-PIN DDR4 ECC SODIMM
Rank2Rx8
FeaturesDDR4 ECC Unbuffered SODIMM Motherboard Compatible
Package Content16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 260-PIN ECC Unbuffered SODIMM

Questions about this item

Does this 260-pin DDR4 SODIMM fit the memory slot in my Synology DiskStation or RackStation?

Yes, the module is a 260-pin DDR4 ECC unbuffered SODIMM built for Synology NAS devices that accept DDR4 2666 memory.

What is the correct way to seat the module so the ECC function works?

Power off the NAS, open the chassis, align the notch on the 260-pin edge connector with the slot key, press firmly until both side clips click, then power on and verify the new capacity in DSM.

Will the Samsung, Micron or Hynix chips on this 2Rx8 module need replacement during the NAS lifetime?

The memory uses major-brand DRAM rated for continuous operation; under normal NAS workloads no chip replacement is expected for the life of the system.

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