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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

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank1Rx4

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.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $1,507.99
Pricier than about 64% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $23.56 per GB
Pricier than about 68% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number4R8D51R4064P
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsCisco UCS C220 M7 SFF
Cisco UCS C240 M7 SFF
Cisco UCS X210c M7
Cisco UCS X410c M7

Other versions of this model

5 more in the same range

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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