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Green bare circuit board with gold edge connector and black memory chips

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 ECC SODIMM CL19 2Rx8 1.2V Synology DS723+

SKU CH-1MXR-DGVKG

16 GB DDR4 ECC SODIMM at 2666 MHz CL19 for Synology DS723+ NAS upgrades

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 16 GB DDR4 2666 ECC for Synology DS723+
  • CL19 latency at 1.2 V for stable NAS operation
  • 2Rx8 dual-rank layout maximises 16 GB density
  • 260-pin SODIMM fits Synology DiskStation DS723+ slot
  • Unbuffered ECC design protects data integrity under load

System-Specific ECC SODIMM for Synology DS723+

This 16GB DDR4 2666MHz ECC Unbuffered SODIMM is built for the Synology DiskStation DS723+ NAS. It uses a 260-pin form factor, runs at 1.20V, and carries a CL19 latency with a 2Rx8 rank structure. The module is validated for compatibility with this specific system.

Suits owners expanding DS723+ memory.

This module suits administrators adding capacity to a Synology DS723+ that requires ECC unbuffered memory. It will not work in laptops or desktops that only accept non-ECC SODIMMs, nor in systems locked to different voltages, speeds, or pin counts. Buyers needing non-ECC memory should look elsewhere.

Deciding spec: ECC Unbuffered SODIMM at DDR4 2666

The single specification that determines fit is the ECC Unbuffered SODIMM type at DDR4 2666 (PC4-21300). Only platforms explicitly supporting this exact combination will recognise the module. Verify your system requires ECC unbuffered DDR4 2666 SODIMMs before purchasing.

Highlights

  • 16 GB DDR4 2666 ECC for Synology DS723+
  • CL19 latency at 1.2 V for stable NAS operation
  • 2Rx8 dual-rank layout maximises 16 GB density
  • 260-pin SODIMM fits Synology DiskStation DS723+ slot
  • Unbuffered ECC design protects data integrity under load

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 the 260-pin SODIMM come alone or with any tools or extra modules?

The package contains a single 16 GB DDR4 2666 CL19 ECC SODIMM and nothing else; no tools or additional sticks are included.

Should I pick the 2Rx8 CL19 version or look for a different rank or latency?

This module is built as 2Rx8 with CL19 latency at 1.20 V; choose it when your NAS requires that exact rank and timing configuration.

Will the 2666 MT/s rating actually run at that speed in a DS723+?

The DS723+ memory controller supports DDR4 2666, so the module will operate at its rated 2666 MT/s without downclocking.

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