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Two green DDR5 ECC registered DIMMs with gold contacts, no heat spreaders

OWC

OWC 64GB (2x32GB) DDR5 4800 CL40 ECC Registered RDIMM Cisco UCS M7 memory upgrade

SKU CH-QE0T-YBGQP

A 64GB dual-module DDR5 4800 CL40 ECC registered RDIMM kit validated for Cisco UCS C220 M7, C240 M7, X210c M7 and X410c M7 servers

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

Capacity 64GB (2 x 32GB)

  • 64GB dual-channel kit doubles server memory capacity
  • DDR5 4800 CL40 delivers high-speed registered performance
  • ECC registered design prevents data errors in critical workloads
  • 1V low voltage reduces power draw per module
  • Validated for Cisco UCS C220 M7 C240 M7 X210c M7 X410c M7

Server ECC RDIMM kit

This OWC kit supplies 64GB of DDR5 memory as two 32GB registered DIMMs. Each module runs at 4800 MT/s with CL40 latency at 1.1V. The parts are built for Cisco UCS C220 M7 SFF, C240 M7 SFF, X210c M7 and X410c M7 servers. They use a 288-pin form factor with ECC and registered buffering.

Not for desktop or unbuffered builds

This memory will not work in standard desktop PCs or consumer motherboards. It cannot be mixed with unbuffered or load-reduced DIMMs. Buyers who need non-ECC modules, different voltages or laptop SO-DIMMs should look elsewhere.

Registered ECC at 4800 MT/s

The registered ECC design with a single 1Rx4 rank per module is the specification that determines compatibility. Only systems qualified for DDR5 4800 registered ECC RDIMMs can use this kit.

Highlights

  • 64GB dual-channel kit doubles server memory capacity
  • DDR5 4800 CL40 delivers high-speed registered performance
  • ECC registered design prevents data errors in critical workloads
  • 1V low voltage reduces power draw per module
  • Validated for Cisco UCS C220 M7 C240 M7 X210c M7 X410c M7

Specifications

BrandOWC
Part Number4R8D51R4064P
Capacity64GB (2 x 32GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Heat SpreaderNo
Compatible SystemCisco UCS C220 M7 SFF
Cisco UCS C240 M7 SFF
Cisco UCS X210c M7
Cisco UCS X410c M7

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Questions about this item

What slot type and pin count does this 288-pin DDR5 RDIMM require?

It installs in a standard DDR5 288-pin RDIMM slot on the Cisco UCS C220 M7 SFF, C240 M7 SFF, X210c M7 or X410c M7 motherboard.

What is the correct sequence for seating both 32 GB modules so the registered buffer initialises?

Power down the server, open the chassis, align each module's key notch with the slot, press firmly until both retention clips click, then power on.

When should the 1.1 V ECC registered DIMMs be reseated or replaced?

Reseat only if the system reports correctable ECC errors after a firmware update; replace if uncorrectable errors persist or a module fails POST.

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