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Two green 288-pin DDR5 RDIMM modules without heat spreaders

OWC

OWC 4R8D51R8032P 32GB (2×16GB) DDR5 4800 CL40 ECC Registered RDIMM Server RAM

SKU CH-CHXQ-N96HJ

Dual-channel 32 GB DDR5 4800 ECC registered RDIMM kit with CL40 latency and 1.1 V operation for compatible servers

  • Capacity32GB (2 x 16GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 32GB (2 x 16GB)

Show 4 more configurations

Rank 1Rx8

  • ECC registered design protects data integrity in servers
  • Dual-channel 32 GB kit (2 × 16 GB) boosts multitasking capacity
  • DDR5 4800 CL40 speed meets JEDEC standard
  • Low 1.1 V voltage reduces power draw
  • 288-pin RDIMM form factor fits select workstations

Server ECC RDIMM Kit

This OWC kit supplies 32 GB of DDR5 ECC Registered memory in a matched pair of 16 GB modules. It is built for workstations and servers that require registered DIMMs and will not function in standard desktop computers. The dual-channel kit simplifies upgrades for compatible platforms.

Thermals and Power

Each module operates at the JEDEC-standard 1.1 V without a heat spreader, relying on system airflow for cooling. Registered buffering reduces electrical load on the memory controller, helping to keep power draw predictable during sustained workloads. No active cooling components are included.

DDR5 4800 CL40 Specification

The kit runs at DDR5 4800 (PC5-38400) with a CAS latency of CL40 in a 1Rx8 288-pin form factor. Compatibility is limited to platforms that support DDR5 ECC Registered RDIMMs; it cannot be mixed with unbuffered or load-reduced memory types.

Highlights

  • ECC registered design protects data integrity in servers
  • Dual-channel 32 GB kit (2 × 16 GB) boosts multitasking capacity
  • DDR5 4800 CL40 speed meets JEDEC standard
  • Low 1.1 V voltage reduces power draw
  • 288-pin RDIMM form factor fits select workstations

Specifications

BrandOWC
Part Number4R8D51R8032P
Capacity32GB (2 x 16GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
Multi-channel KitDual Channel Kit
Heat SpreaderNo

Other versions of this model

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Questions about this item

How do I install the 288-pin DDR5 RDIMMs and what step is often missed?

Power off the server, open the chassis, align each 288-pin module with the DDR5 slot key notch, press firmly until both retention clips click, then enable ECC registered mode in BIOS before booting the OS.

What maintenance or replacement will the 1Rx8 ECC registered modules need later?

No routine maintenance is required; if a module fails the limited lifetime warranty covers replacement, but ECC registered DIMMs cannot be mixed with unbuffered or load-reduced memory when upgrading.

What limit appears first under sustained load with CL40 1.1V DDR5 4800?

The CL40 latency at 1.1V sets the timing envelope; sustained throughput is bounded by the DDR5 4800 transfer rate before thermal throttling becomes a factor.

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