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Green rectangular circuit board with black chips and gold edge connector

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 ECC Unbuffered SODIMM memory upgrade

SKU CH-1RH8-8DRT6

16 GB DDR4 2666 ECC unbuffered SODIMM for Synology NAS, CL19 1.2 V 260-pin 2Rx8 module

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 16GB DDR4 capacity expands NAS storage performance
  • ECC unbuffered design protects data integrity under load
  • 2666MHz CL19 speed matches Synology D4ES01-16G spec
  • 2V low voltage reduces system power draw
  • 260-pin SODIMM form factor fits compatible Synology NAS slots

Synology NAS 16 GB DDR4-2666 ECC SODIMM

This 16 GB DDR4 2666 module adds error-correcting memory to compatible Synology NAS units. It uses a 260-pin SODIMM form factor and runs at 1.2 V with CL19 timing. The unbuffered design suits systems that require non-registered ECC memory.

Replaces lower-capacity or non-ECC SODIMMs

Upgrading from a smaller module or from standard DDR4 without ECC adds both capacity and data-integrity protection. The jump is worth it when the NAS workload includes file serving, virtualization or backup tasks that benefit from corrected single-bit errors.

Limited to DDR4-2666 SODIMM slots with ECC support

The module only works in platforms that accept 260-pin DDR4 ECC unbuffered SODIMMs at 2666 MT/s. Systems restricted to lower speeds, non-ECC memory, or registered DIMMs cannot use this part.

Highlights

  • 16GB DDR4 capacity expands NAS storage performance
  • ECC unbuffered design protects data integrity under load
  • 2666MHz CL19 speed matches Synology D4ES01-16G spec
  • 2V low voltage reduces system power draw
  • 260-pin SODIMM form factor fits compatible Synology NAS slots

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 DDR4 SODIMM fit the memory slot in my Synology NAS?

Yes, the module is a 260-pin DDR4 ECC SODIMM built for Synology systems that accept this form factor.

What is the correct orientation when inserting the module, and which notch alignment do I check?

Align the single key notch on the gold edge with the slot ridge, press firmly until both side clips click into place.

Will the ECC function remain active over the module's lifetime, or does it degrade?

ECC is a hardware feature of the DRAM chips and does not wear out; no maintenance is required.

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