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OWC

OWC 256GB (2x128GB) DDR4 3200 CL22 4Rx4 LRDIMM memory upgrade

SKU CH-6SRS-JYQKF

256 GB DDR4 ECC load-reduced DIMM kit for HP ProLiant DL385 and DX360 Gen10 Plus servers

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes

Capacity 256GB (2 x 128GB)

Struck-through versions exist but are not stocked here.

  • 256 GB total capacity from two 128 GB modules
  • DDR4 3200 speed with CL22 latency at 1.2 V
  • ECC load-reduced design for server reliability
  • Compatible with HP ProLiant DL385 Gen10 Plus, DX360 Gen10 Plus and DX385 Gen10 Plus
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz systems

Server-grade memory kit

This OWC kit provides 256 GB of DDR4 3200 ECC load-reduced memory in two 128 GB modules. It is built for HP ProLiant DL385 Gen10 Plus, DL385 Gen10 Plus v2, DX360 Gen10 Plus and DX385 Gen10 Plus servers. The modules operate at 1.2 V with CL22 latency and a 4Rx4 organisation. They are intended for workloads that require large capacity and error correction.

288-pin LRDIMM form factor

Each module uses the 288-pin LRDIMM form factor without a heat spreader, fitting the standard server DIMM slots on the listed platforms. Load-reduced buffering reduces electrical load on the memory controller, allowing higher densities per channel. The kit cannot be mixed with unbuffered or standard registered ECC DIMMs, so all populated slots must use the same memory type.

Verify platform and population rules

Confirm that your server model matches the supported ProLiant list and check the maximum DIMM count per processor. Ensure the BIOS is current enough to recognise 128 GB LRDIMMs at 3200 MT/s, and plan to populate identical modules in matched channels. Buyers who need unbuffered or standard registered ECC memory should choose a different product.

Highlights

  • 256 GB total capacity from two 128 GB modules
  • DDR4 3200 speed with CL22 latency at 1.2 V
  • ECC load-reduced design for server reliability
  • Compatible with HP ProLiant DL385 Gen10 Plus, DX360 Gen10 Plus and DX385 Gen10 Plus
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz systems

Specifications

BrandOWC
Part Number3L2D44R4256P
Capacity256GB (2 x 128GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemHP ProLiant DL385 Gen10 Plus
HP ProLiant DL385 Gen10 Plus v2
HP ProLiant DX360 Gen10 Plus
HP ProLiant DX385 Gen10 Plus

Other versions of this model

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Questions about this item

What DDR4 standard does the PC4-25600 rating on these 128GB LRDIMMs represent?

The PC4-25600 rating corresponds to DDR4 3200 with CL22 latency at 1.2V.

What physical slot and form factor do the 288-pin LRDIMMs require?

They require a 288-pin DDR4 DIMM slot and fit the standard LRDIMM height used in HP ProLiant DL385 Gen10 Plus, DL385 Gen10 Plus v2, DX360 Gen10 Plus and DX385 Gen10 Plus servers.

What is the correct installation sequence for the two 128GB modules in a DL385 Gen10 Plus?

Populate the two modules in the same channel pair following the server's memory population guide; the step often missed is ensuring both modules are in identical channel positions so the 4Rx4 ranks are balanced.

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