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Green circuit board SODIMM module with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 ECC SODIMM CL19 1.2V Synology DS923+

SKU CH-FRKC-9E9SH

ECC unbuffered SODIMM adds 16 GB of DDR4-2666 memory with CL19 latency for Synology DS923+ NAS systems

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protection guards data integrity in your Synology DS923+
  • 16 GB module expands NAS capacity for heavier workloads
  • DDR4 2666 speed matches the system memory bus
  • 2 V low-voltage operation reduces power draw and heat
  • 260-pin SODIMM form factor fits the DS923+ memory slot

16 GB DDR4 ECC SODIMM for Synology DS923+

This 16 GB module adds ECC-protected DDR4 memory to the Synology DiskStation DS923+. It runs at 2666 MHz with CL19 latency and operates at 1.20 V. The unbuffered 260-pin SODIMM is built with major OEM chips and validated for that specific NAS.

Suited for DS923+ owners who need ECC reliability

Buyers with a different NAS, a laptop or a desktop that requires non-ECC memory should look elsewhere. Systems that only accept registered or load-reduced DIMMs cannot use this unbuffered stick. The single-rank 2Rx8 organisation also means it will not fill a quad-rank requirement.

The ECC unbuffered SODIMM form factor decides fit

Only platforms that explicitly support DDR4 ECC unbuffered SODIMMs at 2666 MHz can accept this part. The 260-pin keying and 1.20 V voltage are fixed by the module design. Verify the motherboard or NAS specification for ECC unbuffered support before purchasing.

Highlights

  • ECC protection guards data integrity in your Synology DS923+
  • 16 GB module expands NAS capacity for heavier workloads
  • DDR4 2666 speed matches the system memory bus
  • 2 V low-voltage operation reduces power draw and heat
  • 260-pin SODIMM form factor fits the DS923+ memory slot

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 on a Synology DS923+?

Yes, the module is a 260-pin DDR4 ECC SODIMM built for the DS923+ memory slot.

What is the correct way to seat this 1.2 V ECC module, and what step do people often miss?

Align the notch with the slot key, press firmly until both side clips click, then verify the system reports 16 GB at 2666 MT/s with ECC active.

Will the Samsung, Micron or Hynix chips on this 2Rx8 module need replacement under normal NAS workloads?

The chips are rated for continuous operation; no scheduled replacement is required unless a memory error is logged by the DSM operating system.

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