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Two green 288-pin DDR5 RDIMM modules without heat spreaders

OWC

OWC 256GB (2x128GB) DDR5 4800 CL40 4Rx4 ECC Registered RDIMM memory upgrade

SKU CH-X9RH-XTPTF

Dual 128 GB DDR5-4800 CL40 ECC registered RDIMMs totalling 256 GB for Cisco UCS C220 M7 SFF, C240 M7 SFF, X210c M7 and X410c M7 servers

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 256GB (2 x 128GB)

  • 256GB kit expands server capacity with two 128GB modules
  • DDR5 4800 CL40 delivers 38400 MT/s bandwidth for demanding workloads
  • ECC registered design detects and corrects data errors in real time
  • 1V operation reduces power draw per module
  • Qualified for Cisco UCS C220 M7 SFF C240 M7 SFF X210c M7 X410c M7

Target Platform

This 256GB kit contains two 128GB DDR5 4800 CL40 4Rx4 ECC registered RDIMM modules built for Cisco UCS C220 M7 SFF, C240 M7 SFF, X210c M7 and X410c M7 servers. It replaces Cisco part UCSMR128G4RE1 and is not compatible with standard desktop computers or unbuffered and load-reduced memory types.

Build Integration

Each module uses a 288-pin DDR5 form factor and operates at 1.1V, requiring a server platform that supports registered ECC memory. The dual-module layout fills two slots and leaves remaining DIMM sockets available for further capacity expansion within the validated Cisco systems.

Thermals and Power

Modules run at the standard 1.1V DDR5 voltage without integrated heat spreaders, relying on chassis airflow for cooling. Registered buffering adds minimal electrical load while the CL40 latency and 4800 MT/s data rate keep power draw consistent with JEDEC DDR5 specifications for sustained server workloads.

Points forts

  • 256GB kit expands server capacity with two 128GB modules
  • DDR5 4800 CL40 delivers 38400 MT/s bandwidth for demanding workloads
  • ECC registered design detects and corrects data errors in real time
  • 1V operation reduces power draw per module
  • Qualified for Cisco UCS C220 M7 SFF C240 M7 SFF X210c M7 X410c M7

Caractéristiques

BrandOWC
Part Number4R8D54R4256P
Capacity256GB (2 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

What CAS latency will the 4800 MHz DDR5 modules run at under sustained server workloads?

The modules operate at CL40 latency as specified by the JEDEC DDR5 4800 standard.

How much power does each 128 GB registered DIMM draw at 1.1 V during continuous operation?

Each DIMM runs at the standard DDR5 1.1 V; registered buffering and ECC add minimal overhead compared with unbuffered modules.

Which Cisco UCS servers must already be installed for this 256 GB kit to be compatible?

The kit is validated for Cisco UCS C220 M7 SFF, C240 M7 SFF, X210c M7 and X410c M7 systems.

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