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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 1TB (8x128GB) DDR5 4800 PC5-38400 4Rx4 1.1V 288-Pin ECC RDIMM Kit Dell PowerEdge R860

SKU CH-D558-2K85T

Eight 128 GB DDR5 4800 registered ECC modules deliver 1 TB for Dell PowerEdge R860 servers

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 1TB total capacity for memory-intensive workloads
  • Eight 128GB modules fill all available slots
  • DDR5 4800 speed with CL40 latency
  • ECC registered design protects data integrity
  • 1V operation reduces server power draw

Dell PowerEdge R860 memory kit

This 1 TB kit comprises eight 128 GB DDR5 RDIMM modules built for the Dell PowerEdge R860. It targets IT teams that need maximum registered ECC capacity in a single qualified configuration. The modules are tested for compatibility with the platform before they leave the factory.

Sustained workload behaviour

Registered buffering and on-die ECC keep data integrity intact during continuous heavy traffic such as virtualisation clusters or database engines. The 1.1 V operating voltage helps limit thermal output when all channels remain fully populated for long periods. CL40 latency at 4800 MT/s delivers steady throughput without timing-related stalls.

Decisive specification

The 4Rx4 rank organisation across 288 pins determines whether the memory controller can address the full 1 TB. Systems that do not support quad-rank x4 modules will not recognise the capacity. Verify the server documentation for 4Rx4 DDR5 RDIMM support before ordering.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $28,567.99
Pricier than about 94% of the 6,523 comparable items (median $188.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 92% of the 6,064 comparable items (median 32 GB).
Price per GB $28.57 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Series Server Memory
Model nameDell Compatible DDR5 ECC Registered RDIMM
Part numberMR38400-744K8
Total capacity1 TB (8 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V

Questions about this item

How much power does the 1TB DDR5 4800 kit draw at 1.10V when running continuously?

Each 128GB module operates at 1.10V; total draw depends on system load and the Dell PowerEdge R860 memory controller.

What server platform is required for this 8-module RDIMM kit to function?

The kit is validated for the Dell PowerEdge R860; the motherboard must support DDR5 4800 ECC registered 4Rx4 288-pin RDIMMs.

Will the 4Rx4 organisation work alongside existing 2Rx4 DDR5 modules in the same R860?

Mixing 4Rx4 and 2Rx4 ranks is possible if the R860 BIOS and memory controller support mixed-rank populations; consult the Dell memory population guide.

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