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Green bare circuit board DDR5 RDIMM with black memory chips and gold edge contacts

OWC

OWC 32GB DDR5 4800 CL40 1Rx4 ECC Registered RDIMM server RAM

SKU CH-HBKM-CVZYW

32 GB DDR5 4800 CL40 ECC registered RDIMM for servers and workstations

  • Capacity32GB
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes
  • 32 GB capacity expands server multitasking headroom
  • DDR5 4800 speed delivers PC5-38400 bandwidth
  • CL40 CAS latency at 1.1 V operation
  • ECC registered design protects data integrity
  • 288-pin 1Rx4 RDIMM fits compatible server slots

Server ECC RDIMM upgrade

This OWC 32GB DDR5 4800 CL40 module is built for workstations and servers that require registered ECC memory. It operates at 1.1V with a 1Rx4 rank configuration across 288 pins. The part is a direct replacement for Kingston KSM48R40BS4TMM-32HMR and carries OWC part number 4R8D51R432GB.

Build integration requirements

The module must be installed in a platform that supports DDR5 registered ECC RDIMMs; it will not function in standard desktop computers or with unbuffered or load-reduced DIMMs. JEDEC and ROHS compliance ensures a warranty-safe upgrade for existing infrastructure. OWC recommends matching capacity, speed and manufacturer across all populated slots for optimal stability.

Suited for registered-ECC platforms

This memory suits administrators extending the life of compatible servers or workstations with validated DDR5 registered ECC support. It is not for desktop PCs, laptops or any system that requires unbuffered or load-reduced modules. Buyers needing different capacities, speeds or form factors should verify their platform's qualified vendor list before purchasing.

Puntos fuertes

  • 32 GB capacity expands server multitasking headroom
  • DDR5 4800 speed delivers PC5-38400 bandwidth
  • CL40 CAS latency at 1.1 V operation
  • ECC registered design protects data integrity
  • 288-pin 1Rx4 RDIMM fits compatible server slots

Especificaciones

BrandOWC
Part Number4R8D51R432GB
Capacity32GB
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Heat SpreaderNo

Preguntas sobre este artículo

How does the 1.1V voltage affect sustained thermal load in a fully populated server?

The 1.1V DDR5 standard voltage keeps power draw low per module, reducing heat output during continuous operation in dense configurations.

What is the audible noise level from the module during all-day operation?

The module has no moving parts or heat spreader, so it produces zero audible noise; only system fans generate sound.

Which motherboard slot and chipset combination is required for this 288-pin RDIMM to function?

A server or workstation motherboard with DDR5 RDIMM slots and a chipset supporting registered ECC memory is required.

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