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Eight green DDR5 RDIMM modules in anti-static tray

OWC

OWC 4R8D54R41TBK 1TB (8x128GB) DDR5 4800 CL40 4Rx4 ECC RDIMM

SKU CH-P4X4-MN4MS

Eight 128 GB DDR5 4800 CL40 ECC registered RDIMMs totalling 1 TB, built for Dell PowerEdge R760xa, R860 and R960 servers

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

Capacity 1TB (8 x 128GB)

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  • 1TB total capacity with eight 128GB modules
  • DDR5 4800 speed rated at PC5-38400 CL40
  • ECC registered design protects data integrity in servers
  • 1V operation reduces power draw per module
  • Qualified for PowerEdge R760xa, R860 and R960

1TB DDR5 ECC RDIMM kit for Dell PowerEdge servers

This kit provides one terabyte of DDR5 4800 memory across eight 128GB registered DIMMs. It is built for PowerEdge R760xa, R860 and R960 systems that require ECC registered modules. Standard desktop or unbuffered platforms cannot use this memory.

288-pin registered design fits supported PowerEdge

Each module uses a 288-pin DDR5 form factor with 4Rx4 organisation and operates at 1.1V. The registered buffer reduces electrical load on the server memory controller. Mixing with unbuffered or load-reduced DIMMs is not supported.

CL40 latency at 4800 MT/s under continuous server

The modules meet JEDEC PC5-38400 specifications for sustained operation in multi-socket environments. ECC correction maintains data integrity during extended compute tasks. No heat spreader is included, relying on chassis airflow for thermal management.

Puntos fuertes

  • 1TB total capacity with eight 128GB modules
  • DDR5 4800 speed rated at PC5-38400 CL40
  • ECC registered design protects data integrity in servers
  • 1V operation reduces power draw per module
  • Qualified for PowerEdge R760xa, R860 and R960

Especificaciones

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 SystemPowerEdge R760xa
PowerEdge R860
PowerEdge R960

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Preguntas sobre este artículo

Will the 1.1 V DDR5 4800 CL40 4Rx4 modules stay within thermal limits during sustained server workloads?

These registered ECC DIMMs run at the standard 1.1 V DDR5 voltage and include no heat spreader, so airflow through the chassis is what keeps temperatures in check.

How much fan noise or extra power draw should I expect when all eight 128 GB sticks run continuously?

The kit draws 1.1 V per module with no onboard cooling, so acoustic and thermal impact depends entirely on the server's own fan curves and chassis airflow design.

Which Dell PowerEdge models must I already own for this 8 x 128 GB kit to work?

The kit is validated for PowerEdge R760xa, R860 and R960 systems and replaces Dell part AC449974 SNPMMWR9C/128G.

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