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Sixteen green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 256GB (16x16GB) DDR5 4800 CL40 ECC RDIMM Dell R760xa memory upgrade

SKU CH-R4J7-31ANT

A 256GB kit of 16 DDR5 4800 CL40 ECC registered DIMMs at 1.1V for Dell PowerEdge R760xa servers

  • Total capacity256 GB (16 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Massive 256GB capacity supports demanding server workloads
  • DDR5 4800 speed delivers high bandwidth for data-intensive tasks
  • ECC registered design detects and corrects memory errors
  • 10V operation reduces power draw in dense configurations
  • 16 modules of 16GB each simplify scaling to full capacity

256 GB DDR5 ECC RDIMM kit for Dell R760xa

This 256 GB kit contains sixteen 16 GB DDR5 4800 CL40 registered DIMMs built for the Dell PowerEdge R760xa. ECC and registered buffering provide the data integrity required in production server workloads. The modules run at 1.1 V and use a 288-pin DDR5 form factor.

Fills all sixteen slots in a single upgrade

Populating every DIMM slot with matched 1Rx8 modules removes the need to mix capacities or ranks later. The kit is validated for the R760xa memory subsystem so the server can boot at the rated 4800 MT/s speed without manual timing changes. No heat spreaders are fitted, leaving clearance for the system’s own airflow path.

Low-voltage DDR5 reduces power draw at load

Operating at 1.1 V keeps per-module power lower than previous DDR generations during sustained compute tasks. Registered buffering adds minimal latency while stabilising the signal across all sixteen ranks. The absence of spreaders means thermal performance depends on the chassis fan profile, which the R760xa manages automatically.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $6,813.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (16 × 16 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $26.62 per GB
Pricier than about 74% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-618K16
Total capacity256 GB (16 × 16 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
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items256 GB (16 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

What is the CAS latency of the DDR5 4800 modules in this 256GB kit?

The modules run at CL40 latency as specified for this DDR5 4800 registered kit.

How much power do the 16 registered DIMMs draw at 1.1V during sustained workloads?

Each 16GB 1Rx8 module operates at 1.10V; total kit power scales with all 16 DIMMs populated under load.

Which Dell server must I already own for this 288-pin RDIMM kit to be compatible?

This memory kit is validated for the Dell PowerEdge R760xa rack server.

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