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Two green DDR4 SODIMM modules, no heat spreader

NEMIX RAM

NEMIX RAM 32GB (2x16GB) DDR4 2666 ECC SODIMM Synology DS923+

SKU CH-Q0AP-KJ9CP

A 32 GB DDR4 ECC SODIMM kit for Synology DS923+ NAS, running at 2666 MT/s with CL19 latency

  • Capacity32GB (2 x 16GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 32 GB kit doubles NAS capacity for heavier workloads
  • ECC protection detects and corrects memory errors automatically
  • 2666 MHz DDR4 speed matches Synology DS923+ specifications
  • Low 1.2 V operation reduces heat and power draw
  • Two 16 GB modules enable dual-channel performance

Synology DS923+ ECC SODIMM kit

This 32 GB kit contains two 16 GB DDR4 2666 ECC unbuffered SODIMM modules built for the Synology DiskStation DS923+. Each stick runs at 1.2 V with CL19 latency and a 2Rx8 organisation. The 260-pin form factor fits the NAS memory slots directly.

Sustained-load behaviour

Modules are stress tested under load to verify stability during continuous NAS workloads such as file serving, backup and virtualization. ECC circuitry detects and corrects single-bit errors to protect data integrity over long operating periods. Unbuffered design keeps latency low for responsive multi-user access.

Deciding specification

ECC unbuffered DDR4 SODIMM at 2666 MT/s is the single requirement for DS923+ compatibility; non-ECC or registered DIMMs will not work in this system. Buyers needing higher capacity per slot or a different memory generation must choose another kit.

Highlights

  • 32 GB kit doubles NAS capacity for heavier workloads
  • ECC protection detects and corrects memory errors automatically
  • 2666 MHz DDR4 speed matches Synology DS923+ specifications
  • Low 1.2 V operation reduces heat and power draw
  • Two 16 GB modules enable dual-channel performance

Specifications

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC Unbuffered SODIMM
Part NumberMSE21300-628K2
Capacity32GB (2 x 16GB)
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 Content32GB (2X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 260-PIN ECC Unbuffered SODIMM KIT

Questions about this item

How much power does the 1.2 V DDR4 2666 kit draw when the DS923+ runs all day?

Each module runs at 1.20 V and the CL19 2666 MT/s rating keeps power draw low, so the 32 GB kit adds minimal heat inside the NAS chassis.

What must already be in the DS923+ for this 260-pin ECC SODIMM kit to work?

The DS923+ needs two free SODIMM slots and a BIOS that accepts 2Rx8 ECC unbuffered DDR4 2666 modules.

Will the CL19 2Rx8 sticks run stably alongside the original memory already installed in the DS923+?

Yes, the kit is validated for the DS923+ and matches the platform's DDR4 2666 ECC unbuffered specification, so it will operate with existing modules at the same speed and timings.

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