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Two green DDR4 ECC registered RDIMM modules, 288-pin, no heat spreader

OWC

OWC 64GB (2x32GB) DDR4 2666 ECC Registered RDIMM Server RAM for Synology RackStation RS18017xs+

SKU CH-RDGZ-28MA7

64GB dual-channel kit of DDR4 2666 ECC registered RDIMM memory for Synology RS18017xs+ servers

  • Capacity64GB (2 x 32GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 64GB (2 x 32GB)

Rank 2Rx4

  • ECC registered design protects data integrity in servers
  • 64GB dual-channel kit (2×32GB) expands NAS capacity
  • DDR4 2666 CL19 at 1.2V matches OEM specs
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133MHz and 2400MHz systems

Targeted Server Upgrade

This 64GB dual-channel kit delivers two 32GB DDR4 2666 ECC registered RDIMMs built for the Synology RackStation RS18017xs+. It is intended for administrators who need error-correcting registered memory in a NAS or workstation and will not fit standard desktop systems.

Capacity and Headroom

The kit provides 64GB total across two modules running at CL19 and 1.2V, operating at PC4-21300 speed with 2Rx4 organisation. Workloads that exceed this capacity will require additional DIMM slots or higher-density modules not included here.

DDR4 2666 Interface Limits

Modules conform to JEDEC DDR4 2666 specifications and are backward compatible with 2133MHz and 2400MHz operation. Registered ECC signalling adds latency versus unbuffered memory and cannot be mixed with load-reduced or unbuffered DIMMs in the same system.

Puntos fuertes

  • ECC registered design protects data integrity in servers
  • 64GB dual-channel kit (2×32GB) expands NAS capacity
  • DDR4 2666 CL19 at 1.2V matches OEM specs
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133MHz and 2400MHz systems

Especificaciones

BrandOWC
Part Number2R6D42R4064P
Capacity64GB (2 x 32GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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Misma familia, con memoria, disipador o frecuencia diferentes — compare antes de decidirse.

Preguntas sobre este artículo

Will this 2666 MHz ECC registered kit run reliably alongside my existing 2133 MHz or 2400 MHz modules in the RS18017xs+?

The kit is backward compatible with 2133 MHz and 2400 MHz speeds, so it will operate at the lower frequency when mixed with slower DDR4 ECC registered DIMMs.

How can I verify the 64 GB dual-channel kit is detected at 2666 MHz with ECC active after installation?

Check the Synology DSM info center or run a memory test; it should show 64 GB total, 2666 MHz speed, CL19 timings and ECC registered status.

Does the package include only the two 32 GB RDIMMs or are any tools or cables supplied?

The box contains the two 32 GB 288-pin DDR4 ECC registered modules; no tools, cables or additional hardware are included.

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