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OWC

OWC 1TB (8x128GB) DDR5 4800 CL40 4Rx4 288-pin 1.1V ECC RDIMM Kit

SKU CH-Z7Z1-8ZPR9

Eight 128 GB DDR5 4800 CL40 ECC registered DIMMs totalling 1 TB for Cisco UCS C220 M7, C240 M7, X210c M7 and X410c M7 servers

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

Capacity 1TB (8 x 128GB)

  • 1 TB capacity for memory-intensive server workloads
  • ECC registered design detects and corrects data errors
  • DDR5 4800 CL40 speed with 1.1 V operation
  • 8 × 128 GB 4Rx4 modules fill all channels
  • Validated for Cisco UCS C220 M7 SFF, C240 M7 SFF, X210c M7 and X410c M7

Capacity & Form Factor

This OWC kit provides 1TB of DDR5 memory across eight 128GB registered DIMMs. Each module uses a 288-pin interface and operates at 1.1V with CL40 latency. The 4Rx4 organisation and ECC registration target Cisco UCS C220 M7 SFF, C240 M7 SFF, X210c M7 and X410c M7 servers.

Who It Suits & Who It Does Not

Administrators expanding Cisco UCS M7 SFF platforms with validated ECC registered capacity will find a direct fit. Buyers needing unbuffered or load-reduced DIMMs, or those building standard desktop PCs, cannot use this kit because the registered signal buffering and pin-out are mechanically and electrically different.

Deciding Specification

The 4Rx4 registered ECC architecture at DDR5 4800 is the single parameter that determines compatibility with the listed Cisco UCS models; systems requiring a different rank structure or unbuffered memory will not accept these modules.

Points forts

  • 1 TB capacity for memory-intensive server workloads
  • ECC registered design detects and corrects data errors
  • DDR5 4800 CL40 speed with 1.1 V operation
  • 8 × 128 GB 4Rx4 modules fill all channels
  • Validated for Cisco UCS C220 M7 SFF, C240 M7 SFF, X210c M7 and X410c M7

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
Heat SpreaderNo
Compatible SystemCisco UCS C220 M7 SFF
Cisco UCS C240 M7 SFF
Cisco UCS X210c M7
Cisco UCS X410c M7

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Questions sur cet article

Will the 1.1V DDR5 modules need active cooling in a Cisco UCS C240 M7 SFF chassis?

The kit has no heat spreader; server chassis airflow is required to keep the 1.1V DDR5 4800 modules within thermal limits during continuous operation.

Which limit appears first when the 4Rx4 ECC RDIMMs run at full load all day?

The memory controller’s maximum supported rank count per channel is reached before bandwidth or voltage limits become a bottleneck.

How loud and hot do the eight 128GB sticks get under 24/7 load?

No heat spreader means the DIMMs rely entirely on chassis fans; noise and temperature follow the server’s own fan curve, not the memory itself.

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