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Four green DDR5 RDIMM modules with gold contacts and black chips

OWC

OWC 256GB (4x64GB) DDR5 4800 ECC Registered RDIMM memory upgrade

SKU CH-JTQS-E66ZY

256 GB kit of four 64 GB DDR5 4800 ECC registered RDIMMs for HP ProLiant Gen11 servers

  • Capacity256GB (4 x 64GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 256GB (4 x 64GB)

  • 256 GB total capacity from four 64 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered design detects and corrects data errors
  • 1 V operation reduces power draw in dense configurations
  • Validated for HP ProLiant DL325 Gen11, DL345 Gen11, DL360 Gen11, DL365 Gen11, DL380 Gen11

Server-grade DDR5 ECC upgrade

This OWC kit delivers 256GB of DDR5 4800 ECC registered memory in four 64GB modules. It is built for HP ProLiant Gen11 servers including the DL325, DL345, DL360, DL365 and DL380. The registered design and ECC support target enterprise workloads that require error correction and signal buffering.

Verify registered DIMM slots and population rules

Confirm your server uses 288-pin DDR5 RDIMM slots and supports 2Rx4 registered modules at 1.1V. This kit will not work in standard desktop boards or in systems that require unbuffered or load-reduced DIMMs. Check the platform's qualified vendor list and maximum per-slot capacity before ordering.

JEDEC-compliant modules without heat spreaders

Each module follows JEDEC and RoHS standards with a CL40 latency profile. The bare PCB design fits dense server chassis where tall heat spreaders would block airflow or adjacent slots. Installation follows standard RDIMM keying; no extra cables or brackets are required.

Points forts

  • 256 GB total capacity from four 64 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered design detects and corrects data errors
  • 1 V operation reduces power draw in dense configurations
  • Validated for HP ProLiant DL325 Gen11, DL345 Gen11, DL360 Gen11, DL365 Gen11, DL380 Gen11

Caractéristiques

BrandOWC
Part Number4R8D52R4256S
Capacity256GB (4 x 64GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemHP ProLiant DL325 Gen11
HP ProLiant DL345 Gen11
HP ProLiant DL360 Gen11
HP ProLiant DL365 Gen11
HP ProLiant DL380 Gen11

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Questions sur cet article

What comes in the box and do I need anything else to install it?

The kit contains four 64 GB DDR5 4800 ECC registered RDIMM modules; no extra parts are required for installation in a compatible server.

How do I decide between the 256 GB kit and a smaller capacity?

Choose the 256 GB (4 x 64 GB) kit when your HP ProLiant Gen11 server needs the maximum supported memory per channel and you want a matched quad-rank set.

What does the 4800 MT/s rating mean once the memory is running in a ProLiant Gen11?

The modules operate at 4800 MT/s with CL40 latency at 1.1 V, delivering the JEDEC-standard DDR5 4800 throughput the server’s memory controller expects.

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