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Green circuit board memory stick with black chips, no heat spreader, 260-pin SODIMM form factor

NEMIX RAM

NEMIX RAM 8GB DDR4 2666 ECC SODIMM Synology DS723+

SKU CH-WE4C-NC5XY

Adds 8 GB of DDR4-2666 ECC SODIMM memory to a Synology DS723+ NAS for data-integrity protection

  • Capacity8GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protects data integrity in NAS workloads
  • 2666 MHz DDR4 speed matches DS723+ specification
  • 20 V low voltage reduces power draw
  • 260-pin SODIMM form factor fits Synology slot
  • 1Rx8 single-rank layout ensures broad compatibility

NEMIX RAM 8GB DDR4 2666 ECC SODIMM

This 8GB DDR4 2666MHz ECC unbuffered SODIMM is validated for the Synology DS723+ NAS. It operates at 1.2V with CL19 latency and uses a 260-pin form factor. The module is built with major OEM chips from Samsung, Micron or Hynix and is rigorously stress tested for stability in mission-critical environments.

IT professionals upgrading a Synology DS723+

This single 8GB stick suits administrators adding capacity to a compatible Synology DiskStation that supports DDR4 2666 ECC SODIMMs. Buyers needing non-ECC memory, higher speeds, larger single-module capacities or modules for other platforms should look elsewhere.

260-pin DDR4 ECC SODIMM interface

The module requires a 260-pin DDR4 ECC SODIMM socket matching the PC4-21300 specification. Compatibility is limited to systems that accept unbuffered ECC SODIMMs at this exact pin count and voltage.

Highlights

  • ECC protects data integrity in NAS workloads
  • 2666 MHz DDR4 speed matches DS723+ specification
  • 20 V low voltage reduces power draw
  • 260-pin SODIMM form factor fits Synology slot
  • 1Rx8 single-rank layout ensures broad compatibility

Specifications

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC Unbuffered SODIMM
Part NumberMSE21300-818K1
Capacity8GB
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 Content8GB (1X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V CL19 260-PIN ECC Unbuffered SODIMM

Questions about this item

Does the 8 GB DDR4 2666 CL19 ECC SODIMM come alone or with extra items?

The package contains one 8 GB DDR4 2666 CL19 1.2 V 260-pin ECC unbuffered SODIMM and nothing else.

Should I pick the single 8 GB module or add a second stick for the DS723+?

The DS723+ has two slots; one 8 GB stick works, but two identical modules enable dual-channel bandwidth.

What does the PC4-21300 rating deliver inside the Synology DS723+?

PC4-21300 confirms 2666 MT/s throughput at CL19 latency with ECC error correction active.

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