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Two green DDR5 RDIMM modules with gold contacts and black chips, no heat spreader

OWC

OWC 4R8D54R4256P 256GB (2x128GB) DDR5 4800 CL40 ECC Registered RDIMM Dell PowerEdge R6625 R760 R7615 R7625

SKU CH-8ANE-XZ5P1

256 GB kit of two 128 GB DDR5 4800 CL40 ECC registered RDIMMs for Dell PowerEdge R6625, R760, R7615 and R7625 servers

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 256GB (2 x 128GB)

  • 256 GB capacity with two 128 GB modules
  • DDR5 4800 speed for high-throughput workloads
  • CL40 latency at 1.1 V for efficient operation
  • ECC registered design protects data integrity
  • Validated for Dell PowerEdge R6625 R760 R7615 R7625

Dell PowerEdge R6625 R760 R7615 R7625 Compatibility

This 256GB kit contains two 128GB DDR5 4800 CL40 ECC Registered RDIMM modules. It is built for Dell PowerEdge R6625, R760, R7615 and R7625 servers. The memory targets IT teams expanding capacity in these specific 1U and 2U rack platforms.

Registered ECC DDR5 Interface Limits

Registered ECC DDR5 modules require a server chipset that supports registered signalling and error correction. They will not function in standard desktop motherboards or consumer laptops. Mixing these DIMMs with unbuffered or load-reduced memory is not supported and will prevent boot.

4Rx4 Rank Density Determines Fit

Each 128GB module uses a 4Rx4 organisation, delivering high density per slot. The server memory controller must support 4Rx4 ranks at DDR5 4800 to recognise the full 256GB. Systems limited to lower rank counts or slower speeds cannot use this kit.

Highlights

  • 256 GB capacity with two 128 GB modules
  • DDR5 4800 speed for high-throughput workloads
  • CL40 latency at 1.1 V for efficient operation
  • ECC registered design protects data integrity
  • Validated for Dell PowerEdge R6625 R760 R7615 R7625

Specifications

BrandOWC
Part Number4R8D54R4256P
Capacity256GB (2 x 128GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Heat SpreaderNo
Compatible SystemDell PowerEdge R6625
Dell PowerEdge R760
Dell PowerEdge R7615
Dell PowerEdge R7625

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Questions about this item

Should I buy the 256GB kit or look for a different capacity?

This kit provides 256GB total using two 128GB modules, matching the listed part number 4R8D54R4256P.

What does the 4800MHz speed mean once installed in a PowerEdge server?

The modules run at DDR5 4800 (PC5-38400) with CL40 latency at 1.1V, delivering the rated throughput when the server memory controller operates at that speed.

Will the 288-pin ECC Registered RDIMM interface work in my R760?

Yes, the 288-pin DDR5 ECC Registered RDIMM form factor is designed for the Dell PowerEdge R6625, R760, R7615 and R7625 and cannot be mixed with unbuffered or load-reduced memory.

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