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Two green DDR5 RDIMM modules with gold contacts, no heat spreaders

OWC

OWC 64GB (2x32GB) DDR5 4800 CL40 ECC Registered RDIMM Dell PowerEdge R660XS R760XS

SKU CH-FS52-7Q7AD

DDR5 4800 ECC registered RDIMM kit adds 64 GB in two 32 GB modules for Dell PowerEdge R660XS and R760XS servers

  • Capacity64GB (2 x 32GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 64GB (2 x 32GB)

  • 64 GB capacity in a two-module kit for expanded server memory
  • DDR5 4800 speed with CL40 latency for responsive data handling
  • ECC registered design detects and corrects errors to protect critical workloads
  • 1 V operation reduces power draw in dense configurations
  • Validated for Dell PowerEdge R660XS and R760XS platforms

Dell PowerEdge R660XS and R760XS upgrade kit

This 64GB kit contains two 32GB DDR5 4800 ECC registered RDIMMs built for Dell PowerEdge R660XS and R760XS servers. It targets administrators who need to expand memory capacity in those specific platforms. The modules are validated for warranty-safe installation in the listed systems. They are not compatible with standard desktop computers or consumer motherboards.

288-pin registered DIMM form factor

Each module uses the 288-pin RDIMM form factor with a 2Rx8 rank configuration and operates at 1.1V. The registered buffer and ECC functionality require a server chipset that supports registered memory. Mixing these modules with unbuffered or load-reduced DIMMs is not supported. The absence of a heat spreader keeps the profile low for dense server chassis.

DDR5 4800 CL40 ECC registered specification

The kit runs at DDR5 4800 (PC5-38400) with a CAS latency of CL40. ECC registered operation provides error correction and signal buffering essential for the target PowerEdge models. This specification determines whether the modules will function correctly in the qualified Dell systems. Buyers needing a different speed, voltage, or unbuffered memory must select another part.

Highlights

  • 64 GB capacity in a two-module kit for expanded server memory
  • DDR5 4800 speed with CL40 latency for responsive data handling
  • ECC registered design detects and corrects errors to protect critical workloads
  • 1 V operation reduces power draw in dense configurations
  • Validated for Dell PowerEdge R660XS and R760XS platforms

Specifications

BrandOWC
Part Number4R8D52R8064P
Capacity64GB (2 x 32GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
Heat SpreaderNo
Compatible SystemDell PowerEdge R660XS
Dell PowerEdge R760XS

Other versions of this model

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Questions about this item

Does the DDR5 4800 interface cap at PC5-38400 CL40 for these modules?

Yes, the kit runs at DDR5 4800 with a PC5-38400 data rate and CL40 latency.

Will the 288-pin RDIMMs fit the Dell PowerEdge R660XS and R760XS memory slots?

They are 288-pin ECC Registered DIMMs built for those PowerEdge servers.

How do I install the 2Rx8 modules and what step is often missed?

Power off the server, open the chassis, align each module with the slot key and press firmly until the latches click.

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