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Six green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 768GB (6 x 128GB) DDR5 6400MHz CL52 4Rx4 ECC RDIMM for Dell PowerEdge XE9680L memory upgrade

SKU CH-MQG4-Q85TN

A 768GB DDR5 6400MHz ECC RDIMM kit of six 128GB modules at CL52, 1.1V, 4Rx4, 288-pin, built for Dell PowerEdge XE9680L servers

  • Total capacity768 GB (6 × 128 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank4Rx4
  • 768GB total capacity scales memory-intensive workloads on Dell PowerEdge XE9680L
  • ECC RDIMM registered design protects data integrity in mission-critical server environments
  • DDR5 6400MHz speed delivers high bandwidth for demanding compute tasks
  • 1V operating voltage reduces power draw across all six 128GB modules
  • 288-pin 4Rx4 configuration matches Dell PowerEdge XE9680L memory architecture

System-specific DDR5 kit for Dell PowerEdge XE9680L

This NEMIX RAM kit delivers 768 GB of registered DDR5 memory across six 128 GB modules. It is built for the Dell PowerEdge XE9680L rack server and runs at 6400 MHz with CL52 latency at 1.10 V. The 4Rx4 ECC RDIMM design targets enterprise workloads that demand data integrity and high density.

Suited for memory-bound server tasks.

The kit fits administrators scaling virtualisation, in-memory databases or AI training on the validated Dell platform. Buyers needing non-ECC memory, lower capacities or consumer motherboards should look elsewhere because the modules require registered ECC support and the specific Dell qualification.

768 GB total capacity with six-module headroom

Six 128 GB RDIMMs populate the Dell PowerEdge XE9680L with 768 GB of addressable memory, leaving room for future expansion within the server’s slot limit. Workloads exceeding this capacity or requiring higher clock speeds will need a different configuration or platform.

How it compares

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

Price $27,850.99
Pricier than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (6 × 128 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $36.26 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-744K6
Total capacity768 GB (6 × 128 GB)
Product type288-Pin DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items768 GB (6 × 128 GB) DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Does the Dell PowerEdge XE9680L need any specific CPU or BIOS revision before this 768 GB DDR5 kit will function?

The kit is built to Dell XE9680L specification — 6400 MHz, CL52, 1.1 V, 288-pin ECC RDIMM — so the server must support DDR5-6400 registered memory at that voltage and latency.

Will the six 128 GB 4Rx4 modules run at 6400 MHz if the server also has slower RDIMMs installed?

The server's memory controller will negotiate a common speed; mixing with slower RDIMMs will force the whole population down to the lowest supported rate.

How can I confirm the full 768 GB is recognised and running at 6400 MHz CL52 after installation?

Check the BIOS memory map for 768 GB total and verify the reported speed shows 6400 MT/s with CL52 timings.

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