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Green 288-pin DDR4 RDIMM module, 32GB capacity, no heat spreader

NEMIX RAM

NEMIX RAM 32GB DDR4 2666 ECC RDIMM CL19 2Rx8 Synology Compatible Memory Upgrade

SKU CH-4NAM-351G2

32 GB DDR4 2666 ECC registered DIMM with CL19 latency for Synology NAS upgrades

  • Capacity32GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protection guards data integrity in Synology NAS
  • 32 GB capacity expands memory for heavy workloads
  • DDR4 2666 speed matches system specifications
  • Registered RDIMM design ensures server-grade stability
  • 20 V operation reduces power consumption

Synology NAS ECC RDIMM Upgrade

This 32 GB DDR4 2666 module is built for Synology FlashStation NAS units that require registered ECC memory. It delivers 32 GB in a single 2Rx8 stick, letting administrators add capacity without filling every slot.

Registered DDR4 2666 limits

The DDR4 2666 interface caps transfer rates at PC4-21300, so throughput is bounded by that standard rather than by the module itself. Registered buffering adds a clock cycle of latency, which is normal for server platforms but prevents use in consumer boards that expect unbuffered DIMMs. ECC operation also requires a memory controller that supports error correction.

Single-rank 288-pin build

The module uses a bare green PCB without a heat spreader, relying on chassis airflow for cooling. Its 288-pin RDIMM keying fits only registered DDR4 slots, so it will not seat in UDIMM or SO-DIMM sockets. The 1.2 V operating voltage matches the DDR4 specification and keeps power draw predictable in dense NAS configurations.

Puntos fuertes

  • ECC protection guards data integrity in Synology NAS
  • 32 GB capacity expands memory for heavy workloads
  • DDR4 2666 speed matches system specifications
  • Registered RDIMM design ensures server-grade stability
  • 20 V operation reduces power consumption

Especificaciones

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC RDIMM Registered Server Memory
Part NumberMR21300-328K1
Capacity32GB
SpeedDDR4 2666 (PC4 21300)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemSynology
CAS LatencyCL19
Heat SpreaderNo
Type288-Pin DDR4 RDIMM
Rank2Rx8
FeaturesDDR4 ECC Registered RDIMM Server Motherboard Compatible
Package Content32GB (1X32GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 288-PIN ECC RDIMM Registered Server Memory

Preguntas sobre este artículo

Should I pick the single 32 GB module or add multiple sticks?

The module is sold as one 32 GB stick; add a second identical module only if your Synology NAS has a free slot and the manual confirms dual-channel support.

What does the 2666 MT/s rating deliver inside a Synology NAS?

The DDR4 2666 speed runs at the rated 2666 MT/s with CL19 latency, giving the NAS its maximum supported memory bandwidth for file serving and virtualization workloads.

How does the 288-pin ECC RDIMM interface limit compatibility?

The 288-pin DDR4 RDIMM form factor with registered ECC only fits servers and NAS units that explicitly support registered DIMMs; it will not work in standard desktop or laptop slots.

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