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Four green DDR4 RDIMM modules, 288-pin, no heat spreader

OWC

OWC 32GB (4x8GB) DDR4 2666 ECC Registered RDIMM FS2017 server RAM

SKU CH-CXER-RTX55

32 GB kit of four 8 GB DDR4 2666 ECC registered RDIMMs for Synology FlashStation FS2017 servers

  • Capacity32GB (4 x 8GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 32GB (4 x 8GB)

Rank 1Rx4

  • ECC registered design protects data integrity in server workloads
  • 32 GB total capacity across four 8 GB modules for high-density upgrades
  • DDR4 2666 MHz PC4-21300 speed with CL19 latency balances throughput and response
  • 2 V operation reduces power draw and heat in dense chassis
  • JEDEC and RoHS compliant for warranty-safe deployment in Synology FS2017 systems

Server ECC registered kit

This 32 GB kit contains four 8 GB DDR4 2666 registered DIMMs built for Synology FlashStation FS2017 and compatible workstations or NAS systems. ECC and registered signalling protect data integrity in multi-user environments. The modules run at 1.2 V with CL19 latency and conform to JEDEC PC4-21300 standards. They will not work in standard desktop boards or alongside unbuffered or load-reduced memory.

Thermals and power draw

Each module operates at the standard 1.2 V DDR4 voltage, keeping power consumption low during typical NAS or server workloads. No heat spreaders are fitted, so airflow across the 288-pin PCB handles cooling without added bulk. Registered buffering reduces electrical load on the memory controller, contributing to stable, quiet operation in densely populated chassis. Backward compatibility with 2133 and 2400 MHz systems allows flexible deployment.

Sustained load behaviour

Under continuous read-write cycles the registered design maintains signal integrity across all four ranks, preventing the errors that can accumulate in long-running database or virtualization tasks. ECC correction operates transparently, correcting single-bit faults before they affect applications. The kit is validated for 100 % JEDEC compliance, ensuring consistent throughput during extended backup windows or compute clusters.

Puntos fuertes

  • ECC registered design protects data integrity in server workloads
  • 32 GB total capacity across four 8 GB modules for high-density upgrades
  • DDR4 2666 MHz PC4-21300 speed with CL19 latency balances throughput and response
  • 2 V operation reduces power draw and heat in dense chassis
  • JEDEC and RoHS compliant for warranty-safe deployment in Synology FS2017 systems

Especificaciones

BrandOWC
Part Number2R6D41R4032S
Capacity32GB (4 x 8GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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Preguntas sobre este artículo

How do I install the 288-pin DDR4 RDIMM modules in the FS2017, and what step is often missed?

Power down the NAS, open the chassis, align each module's notch with the slot key, press firmly until the ejector tabs click shut, then verify all four 8GB sticks are recognised in the BIOS before closing the case.

What maintenance or replacement will this 32GB ECC registered kit need later?

No routine maintenance is required; the modules have no heat spreaders or moving parts, so replacement is only necessary if a DIMM fails or you expand capacity beyond the four-slot limit.

What limit appears first under sustained load with these CL19 1.2V registered DIMMs?

The memory-controller's maximum supported capacity or slot count is reached before the modules' own thermal or voltage thresholds become a bottleneck.

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