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Two green DDR5 ECC registered DIMMs, no heat spreaders

OWC

OWC 128GB (2x64GB) DDR5 4800 CL40 2Rx4 288-pin 1.1V ECC Registered RDIMM

SKU CH-VTAM-XWDHV

128 GB dual-channel DDR5 ECC registered kit at 4800 MT/s CL40 for HP ProLiant Gen11 servers

  • Capacity128GB (2 x 64GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 128GB (2 x 64GB)

  • 128 GB kit (2 × 64 GB) doubles server capacity
  • DDR5 4800 CL40 at 1.1 V meets JEDEC standard
  • ECC registered 2Rx4 design protects data integrity
  • Validated for HP ProLiant DL320, DL380a, DX320 Gen11
  • 100 % compliant upgrade keeps manufacturer warranty intact

HP ProLiant Gen11 server memory

This OWC kit provides 128GB of DDR5 ECC registered RDIMM across two 64GB modules. It runs at 4800MHz with CL40 latency and operates at 1.1V. The memory is designed specifically for HP ProLiant DL320 Gen11, DL380a Gen11 and DX320 Gen11 servers.

Workstations and servers needing registered ECC

Suitable for administrators upgrading compatible HP ProLiant Gen11 systems where registered ECC memory is required. Not for standard desktop computers, laptops or consumer motherboards that only accept unbuffered non-ECC modules. Cannot be mixed with unbuffered or load-reduced ECC memory types.

128GB kit for multi-slot server configurations

Two 64GB 2Rx4 modules fill two DIMM slots and deliver 128GB total capacity for virtualization, database or compute workloads. Headroom scales with available slots on the target platform; larger memory footprints require additional kits and free DIMM positions.

Highlights

  • 128 GB kit (2 × 64 GB) doubles server capacity
  • DDR5 4800 CL40 at 1.1 V meets JEDEC standard
  • ECC registered 2Rx4 design protects data integrity
  • Validated for HP ProLiant DL320, DL380a, DX320 Gen11
  • 100 % compliant upgrade keeps manufacturer warranty intact

Specifications

BrandOWC
Part Number4R8D52R4128P
Capacity128GB (2 x 64GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemHP ProLiant DL320 Gen11
HP ProLiant DL380a Gen11
HP ProLiant DX320 Gen11

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Questions about this item

What server must I already own for this 128GB 2Rx4 ECC Registered RDIMM kit to work?

This kit is validated for HP ProLiant DL320 Gen11, DL380a Gen11 and DX320 Gen11 servers.

How does this 4800 CL40 registered memory behave alongside any load-reduced or unbuffered DIMMs I might keep installed?

The modules cannot be mixed with load-reduced or unbuffered memory; all slots must use registered ECC DIMMs.

How can I confirm the kit is running at the rated 4800 speed and CL40 latency after installation?

Check the BIOS or system management utility — it should report DDR5 4800 (PC5-38400) with CAS latency 40 for each 64GB module.

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