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Green DDR4 RDIMM circuit board with black chips and gold edge connector

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 CL19 1.2V 288-Pin ECC RDIMM Synology Compatible Memory Upgrade

SKU CH-J3T7-8WGP4

16 GB DDR4 ECC registered DIMM running at 2666 MHz with CL19 latency for Synology NAS systems

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 16 GB capacity expands Synology NAS storage headroom
  • DDR4 2666 speed matches system bus for stable throughput
  • ECC registered design detects and corrects data errors
  • 2 V operation reduces power draw and heat
  • 288-pin RDIMM form factor fits Synology FlashStation DIMM slots

Synology DDR4 ECC RDIMM

This 16 GB DDR4 2666 module is built for Synology FlashStation NAS units that require registered ECC memory. It delivers 1.2 V operation with CL19 latency in a single 288-pin RDIMM. IT administrators upgrading compatible systems gain error correction and registered buffering for data integrity.

Thermals noise and power

The module runs at the standard DDR4 voltage of 1.20 V without a heat spreader, relying on chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller during normal NAS workloads. Silent solid-state operation adds no audible noise to the rack environment.

Sustained load behaviour

Under continuous read and write cycles the ECC logic corrects single-bit errors while the 2Rx4 organisation maintains signal stability across ranks. Stress-tested modules preserve throughput without throttling during extended backup or virtualization tasks. Compatibility validation targets the Synology D4RD-2666-16G specification for reliable long-term service.

Points forts

  • 16 GB capacity expands Synology NAS storage headroom
  • DDR4 2666 speed matches system bus for stable throughput
  • ECC registered design detects and corrects data errors
  • 2 V operation reduces power draw and heat
  • 288-pin RDIMM form factor fits Synology FlashStation DIMM slots

Caractéristiques

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC RDIMM Registered Server Memory
Part NumberMR21300-628K1
Capacity16GB
SpeedDDR4 2666 (PC4 21300)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemSynology
CAS LatencyCL19
Heat SpreaderNo
Type288-Pin DDR4 RDIMM
Rank2Rx4
FeaturesDDR4 ECC Registered RDIMM Server Motherboard Compatible
Package Content16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx4 1.2V CL19 288-PIN ECC RDIMM Registered Server Memory

Questions sur cet article

How do I install this 288-Pin DDR4 RDIMM in my Synology NAS, and what step is often missed?

Power down the NAS, open the chassis, align the notch on the 288-Pin module with the slot key, press firmly until both retention clips click, then verify the new 16GB capacity in DSM before closing the case.

What maintenance or replacement will this ECC Registered module need over time?

No scheduled maintenance is required; the module either runs reliably for the system's life or is replaced under the lifetime warranty if a memory error appears.

What limit appears first when this CL19 1.20V kit runs sustained workloads?

The DDR4 2666 bandwidth ceiling is reached before thermal throttling, since the module has no heat spreader and operates at standard 1.20V.

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