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Eight green DDR5 RDIMM modules in a row

OWC

OWC 1TB (8x128GB) DDR5 4800 PC5-38400 CL40 4Rx4 288-pin 1.1V ECC Registered RDIMM server RAM

SKU CH-CNM3-8BWQ5

Eight 128 GB DDR5 4800 ECC registered RDIMMs deliver 1 TB of server-grade capacity with CL40 latency at 1.1 V

  • Capacity1TB (8 x 128GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 1TB (8 x 128GB)

Voir les 4 autres configurations

Rank 4Rx4

  • 1TB total capacity across eight 128GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth rating
  • ECC registered design detects and corrects data errors
  • 4Rx4 organisation and CL40 latency for server workloads
  • JEDEC-standard 1.1V operation ensures broad compatibility

High-capacity DDR5 server kit

This OWC kit supplies 1TB of DDR5 memory across eight 128GB registered DIMMs. Each module runs at 4800 MT/s with CL40 latency at 1.1V. The 4Rx4 organisation and ECC registration target enterprise workloads that demand data integrity and maximum density per channel.

Suited for registered ECC platforms only

The modules require a workstation or server motherboard that supports registered DDR5 ECC RDIMMs. They will not operate in standard desktop boards, nor can they be mixed with unbuffered or load-reduced DIMMs. Buyers needing consumer SO-DIMMs or non-ECC UDIMMs must choose a different product line.

Build integration notes

Eight 288-pin slots running in a supported multi-channel configuration are needed to install the full kit. The 1.1V JEDEC voltage simplifies power planning, while the absence of heat spreaders keeps module height low for dense chassis layouts. The kit frees additional DIMM slots for future expansion when the platform supports more than eight channels.

Points forts

  • 1TB total capacity across eight 128GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth rating
  • ECC registered design detects and corrects data errors
  • 4Rx4 organisation and CL40 latency for server workloads
  • JEDEC-standard 1.1V operation ensures broad compatibility

Caractéristiques

BrandOWC
Part Number4R8D54R41TBK
Capacity1TB (8 x 128GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

Autres versions de ce modèle

5 de plus dans cette gamme

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Questions sur cet article

What motherboard slot and DDR generation does this 288-pin DDR5 4800 kit require?

The kit uses 288-pin DDR5 DIMM slots running at 4800 MT/s (PC5-38400) and needs a server or workstation platform that supports registered ECC DDR5 memory.

Can I add these 4Rx4 registered ECC modules to existing unbuffered or load-reduced DDR5 DIMMs?

No — the modules are registered ECC (4Rx4) and cannot be mixed with unbuffered or load-reduced DDR5 memory; all populated slots must use the same registered ECC type.

How can I confirm the kit is running at the rated 4800 MT/s CL40 1.1V after installation?

Check the BIOS/UEFI memory information or a tool such as CPU-Z to verify the speed reads 4800 MT/s, CAS latency 40 and voltage 1.1V, and run a memory diagnostic to ensure error-free operation.

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