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Eight green DDR5 RDIMM modules in static bags

OWC

OWC 256GB (8x32GB) DDR5 4800 CL40 ECC Registered RDIMM server RAM

SKU CH-B0MC-5YM7G

Eight 32 GB DDR5 4800 CL40 ECC registered RDIMMs totalling 256 GB at 1.1 V for servers and workstations

  • Capacity256GB (8 x 32GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 256GB (8 x 32GB)

Voir les 4 autres configurations

Rank 2Rx8

  • 256 GB total capacity from eight 32 GB modules
  • DDR5 4800 speed with CL40 latency for responsive server workloads
  • ECC registered design detects and corrects data errors in critical applications
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • 1 V operation reduces power draw in dense configurations

Server ECC RDIMM kit

This OWC kit supplies 256 GB of DDR5 memory across eight registered DIMMs. Each module is a 32 GB 2Rx8 part rated at 4800 MT/s with CL40 latency and 1.1 V operation. The kit targets workstations and servers that require error-correcting registered memory.

JEDEC compliant build

Modules follow the 288-pin DDR5 RDIMM standard and carry no heat spreader. Registered buffering and on-die ECC protect data integrity in multi-socket platforms. The 2Rx8 organisation suits high-capacity configurations where signal integrity matters.

Verify platform requirements

Confirm your motherboard supports DDR5 registered ECC RDIMMs and accepts 2Rx8 modules at 4800 MT/s. This memory will not work in standard desktop boards or alongside unbuffered or load-reduced DIMMs. Check the vendor qualified-vendor list before ordering.

Points forts

  • 256 GB total capacity from eight 32 GB modules
  • DDR5 4800 speed with CL40 latency for responsive server workloads
  • ECC registered design detects and corrects data errors in critical applications
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • 1 V operation reduces power draw in dense configurations

Caractéristiques

BrandOWC
Part Number4R8D52R8256K
Capacity256GB (8 x 32GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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Questions sur cet article

What does the DDR5 4800 (PC5-38400) standard mean for real-world throughput?

The modules run at the JEDEC-standard 4800 MT/s data rate; actual throughput is determined by the platform's memory controller and channel configuration.

What physical slot and clearance do these 288-pin RDIMMs require?

They fit standard DDR5 288-pin RDIMM sockets and have no heat spreader, so they occupy only the module height defined by the JEDEC form factor.

How are the eight 32 GB sticks installed for correct dual-channel operation?

Populate the eight DIMM slots according to the motherboard's channel map — typically one module per channel per socket — and ensure all slots in a channel are filled identically to maintain 2Rx8 organisation.

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