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Two green DDR4 ECC SODIMM sticks, no heat spreaders, 260-pin, 16GB kit

NEMIX RAM

NEMIX RAM 16GB (2x8GB) DDR4 2666 ECC SODIMM kit for Synology DS723+

SKU CH-R4W5-QEGPP

A 16 GB DDR4 ECC SODIMM kit running at 2666 MHz with CL19 latency for Synology DS723+ NAS

  • Capacity16GB (2 x 8GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protection guards data integrity with built-in error correction
  • 16 GB kit (2×8 GB) expands NAS capacity for heavier workloads
  • DDR4 2666 speed matches DS723+ specification for stable operation
  • Low 1.2 V voltage reduces power draw and heat in the enclosure
  • 260-pin SODIMM form factor fits the Synology memory slots directly

Synology DS723+ ECC SODIMM kit

This 16GB kit contains two 8GB DDR4 2666 ECC unbuffered SODIMM modules built for the Synology DiskStation DS723+ NAS. Each stick runs at 1.2V with CL19 timing and uses a 260-pin layout. The memory is validated for that specific platform.

NAS owners needing ECC reliability

The kit suits administrators who want error-correcting memory for data integrity in a DS723+ enclosure. Builders working with non-ECC laptops, standard desktop DIMM slots, or systems that require registered modules should look elsewhere.

DDR4 2666 ECC unbuffered SODIMM

The single specification that decides fit is the combination of DDR4 2666 speed, ECC unbuffered operation, and 260-pin SODIMM form factor. Only systems that accept this exact module type will recognise the kit.

Highlights

  • ECC protection guards data integrity with built-in error correction
  • 16 GB kit (2×8 GB) expands NAS capacity for heavier workloads
  • DDR4 2666 speed matches DS723+ specification for stable operation
  • Low 1.2 V voltage reduces power draw and heat in the enclosure
  • 260-pin SODIMM form factor fits the Synology memory slots directly

Specifications

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC Unbuffered SODIMM
Part NumberMSE21300-818K2
Capacity16GB (2 x 8GB)
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
Rank1Rx8
FeaturesDDR4 ECC Unbuffered SODIMM Motherboard Compatible
Package Content16GB (2X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V CL19 260-PIN ECC Unbuffered SODIMM KIT

Questions about this item

Should I choose the 16 GB kit or a different capacity for my DS723+?

This kit provides 16 GB as two 8 GB modules, matching the two slots in the DS723+ for a balanced, dual-channel upgrade.

What does the 2666 MHz rating deliver once installed in the NAS?

The modules run at DDR4 2666 with CL19 latency and 1.20 V, giving the DS723+ its rated memory bandwidth for file serving and virtualization workloads.

How does the 260-pin ECC SODIMM interface limit performance in practice?

The 260-pin DDR4 ECC SODIMM form factor caps speed at the JEDEC 2666 standard, so the kit operates at PC4-21300 without overclocking headroom.

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