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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 1TB (8x128GB) DDR5 4800 PC5-38400 4Rx4 CL40 288-Pin ECC RDIMM Dell PowerEdge R760xa

SKU CH-SPX0-5MHAN

Eight-module kit delivers 1 TB of DDR5 4800 ECC registered memory for Dell PowerEdge R760xa servers

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 1TB total capacity from eight 128GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth
  • ECC registered design protects data integrity
  • CL40 latency at 1.10V operating voltage
  • Validated for Dell PowerEdge R760xa servers

1TB DDR5 ECC RDIMM kit for Dell PowerEdge R760xa

This kit delivers one terabyte of registered DDR5 memory across eight 128 GB modules. It is built for the Dell PowerEdge R760xa rack server where ECC and registered signalling are required for stable operation.

Eight matched modules simplify population rules

The kit supplies eight identical 4Rx4 RDIMMs so every slot receives the same rank configuration and timing. This removes the guesswork of mixing capacities or ranks and lets the server initialise memory training in a single pass.

4800 MT/s DDR5 with CL40 latency

The modules run at the JEDEC-standard 4800 MT/s data rate with a CAS latency of 40 cycles. If the platform demands a different speed grade or lower latency this kit will not meet that requirement.

How it compares

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

Price $30,984.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $30.98 per GB
Pricier than about 89% 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 numberMR38400-744K8
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
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items1 TB (8 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the 4Rx4 DDR5 modules need any firmware updates or reseating over time?

The 1.10V registered DDR5 RDIMMs are designed for continuous server operation; no periodic firmware updates or reseating are required once they pass initial POST validation.

What limit appears first when the 128GB 4Rx4 sticks run at 4800 MT/s under sustained load?

The CL40 latency at 4800 MT/s is the primary timing constraint; thermal throttling is unlikely because each module operates at 1.10V without a heat spreader in a chassis with forced airflow.

How much noise or heat do the eight 128GB DDR5 RDIMMs add when the R760xa runs all day?

Registered DDR5 modules at 1.10V generate minimal extra heat and have no moving parts, so they add no audible noise and only marginal thermal load to the server's existing cooling.

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