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NEMIX RAM

NEMIX RAM 16GB (2x8GB) DDR4 2666 ECC SODIMM Synology DS923+ memory upgrade

SKU CH-2YC5-8H8JF

16 GB dual-channel DDR4 2666 ECC SODIMM kit validated for the Synology DS923+ NAS

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • ECC protection guards data integrity for Synology DS923+ NAS
  • 16 GB dual-channel kit expands memory capacity for heavier workloads
  • DDR4 2666 speed matches system specification for stable operation
  • 2 V low voltage reduces power draw and heat output
  • 260-pin SODIMM form factor fits the NAS memory slots directly

NEMIX RAM 16GB DDR4 ECC SODIMM kit

This kit provides 16GB of DDR4 ECC unbuffered memory in two 8GB modules. It runs at 2666 MT/s with a CL19 latency and operates at 1.20 V. The 260-pin SODIMM form factor is built for the Synology DiskStation DS923+ NAS.

Suited for DS923+ owners adding ECC capacity

The modules are validated for the DS923+ and deliver error-correcting reliability for file services and virtualization. Systems that require registered DIMMs, non-ECC memory or a different pin count cannot use this kit.

Deciding specification: 2666 MT/s DDR4 ECC SODIMM

The DS923+ memory controller expects DDR4 2666 ECC unbuffered SODIMMs; matching that speed, voltage and error-correction type determines whether the upgrade will be accepted by the NAS.

How it compares

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

Price $125.99
Cheaper than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.87 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineSynology Compatible Series NAS Memory
Model nameSynology DDR4 2666 MHz ECC Unbuffered SODIMM
Part numberMSE21300-818K2
Total capacity16 GB (2 × 8 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 rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology
In the box
Included items16 GB (2 × 8 GB) DDR4 2666 MHz PC4-21300 1Rx8 1.2 V CL19 260-PIN ECC Unbuffered SODIMM KIT

Questions about this item

Should I choose the 16GB kit or a different capacity?

This kit provides 16GB total using two 8GB modules. It matches the DS923+ dual-channel layout for maximum bandwidth.

What does DDR4 2666 mean for my NAS performance?

The modules run at 2666 MT/s with CL19 latency, delivering PC4-21300 bandwidth. The Synology DS923+ memory controller will operate them at this rated speed.

Does the 260-pin ECC SODIMM interface limit speed or capacity?

The 260-pin DDR4 ECC SODIMM form factor fits the DS923+ slots directly. It supports the kit's 2666 MT/s rating and 16GB total capacity without downclocking.

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