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Two green DDR4 ECC UDIMM sticks, 288-pin, no heat spreader

OWC

OWC 32GB (2x16GB) DDR4 2666 ECC UDIMM for Synology RS4017xs+ RS4021xs+

SKU CH-NQCG-K52HM

32 GB kit of two 16 GB DDR4 2666 ECC UDIMMs validated for Synology RS4017xs+ and RS4021xs+ rackstations

  • Capacity32GB (2 x 16GB)
  • Type288-Pin DDR4 ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 32GB (2 x 16GB)

  • 32 GB total capacity from two 16 GB modules
  • DDR4 2666 speed rated at PC4-21300 with CL19 latency
  • ECC unbuffered design protects data integrity in NAS workloads
  • Validated for Synology RackStation RS4017xs+ and RS4021xs+
  • Low 1.2 V operation reduces power draw and heat

Synology RackStation Memory Upgrade

This 32 GB kit contains two 16 GB DDR4 2666 ECC UDIMM modules validated for the Synology RS4017xs+ and RS4021xs+. It targets administrators who need to expand the installed memory of those specific rack-mount NAS units.

288-Pin ECC Unbuffered DIMM Fit

The modules use the standard 288-pin DDR4 form factor and run at 1.2 V with CL19 latency. They slot directly into the compatible RackStation DIMM sockets without requiring registered or load-reduced memory, freeing the existing slots for this matched pair.

JEDEC-Standard Compliance and Lifetime Support

Each module meets JEDEC and RoHS specifications, ensuring a warranty-safe upgrade path. The kit is backed by OWC's limited lifetime warranty and advanced replacement programme, providing technical support if a module ever needs service.

Punti di forza

  • 32 GB total capacity from two 16 GB modules
  • DDR4 2666 speed rated at PC4-21300 with CL19 latency
  • ECC unbuffered design protects data integrity in NAS workloads
  • Validated for Synology RackStation RS4017xs+ and RS4021xs+
  • Low 1.2 V operation reduces power draw and heat

Caratteristiche tecniche

BrandOWC
Part Number2E6D42R8032P
Capacity32GB (2 x 16GB)
Type288-Pin DDR4 ECC UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemSynology RackstationRS4017xs+
Synology RackstationRS4021xs+

Altre versioni di questo modello

altri 5 nella stessa gamma

Stessa famiglia, con memoria, dissipatore o frequenza diversi — confronti prima di decidere.

Domande su questo articolo

Will the CL19 latency and 2666 MHz speed limit throughput under sustained NAS workloads?

The kit runs at DDR4 2666 with CL19 timing; sustained throughput is determined by the Synology RS4017xs+ or RS4021xs+ memory controller and workload mix, not by the modules alone.

Does the lack of a heat spreader cause higher temperatures or fan noise during all-day operation?

These 1.2 V unbuffered ECC UDIMMs have no heat spreader; the Synology chassis airflow manages thermals, and typical NAS fan profiles remain unchanged under continuous load.

Which Synology models must I already own for this 32 GB kit to be compatible?

The 2x16 GB DDR4 2666 ECC UDIMM kit is validated for Synology RackStation RS4017xs+ and RS4021xs+ systems.

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