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Four green DDR5 RDIMM modules with black chips and gold contacts

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR5 6400MHz CL52 288-Pin ECC RDIMM for Dell PowerEdge XE9680L memory upgrade

SKU CH-6HHG-67E96

A 512GB registered ECC DDR5 kit of four 128GB modules running at 6400MHz with CL52 latency, built for Dell PowerEdge XE9680L servers

  • Total capacity512 GB (4 × 128 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank4Rx4
  • 512 GB capacity from four 128 GB modules expands server memory
  • DDR5 6400 MHz speed with CL52 latency boosts data throughput
  • ECC RDIMM registered design detects and corrects memory errors
  • 10 V operation reduces power draw in dense configurations
  • Validated for Dell PowerEdge XE9680L rack server compatibility

Server-grade 512GB DDR5 kit

This 512GB kit contains four 128GB DDR5 6400MHz ECC RDIMM modules built for the Dell PowerEdge XE9680L rack server. It targets administrators who need maximum registered memory capacity in a validated configuration.

Registered ECC integration

Each module uses a 288-pin RDIMM form factor with 4Rx4 organisation and on-die ECC, requiring a motherboard that supports registered DDR5 at 1.1V. The registered buffer reduces electrical load on the memory controller, freeing signal integrity headroom for dense population.

512GB total capacity headroom

The four-module kit delivers 512GB of addressable memory, suitable for large-scale virtualization, in-memory databases and AI training workloads. Capacity stops at this ceiling; workloads that exceed 512GB will require a platform with additional memory channels or higher-density modules.

How it compares

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

Price $18,058.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $35.27 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 numberMR51200-744K4
Total capacity512 GB (4 × 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 items512 GB (4 × 128 GB) DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What is the CAS latency limit of the CL52 timing under sustained server workloads?

The modules operate at CL52 CAS latency, which is the rated timing for DDR5 6400MHz operation under continuous load.

How much power does each 128GB module draw at the rated 1.1V during all-day operation?

Each 128GB RDIMM runs at 1.10V, the standard DDR5 voltage for registered ECC modules in this density.

Which motherboard slot type and channel population does the 4Rx4 288-pin kit require?

The kit uses 288-pin DDR5 RDIMM slots and requires a platform that supports 4Rx4 registered ECC memory, such as the Dell PowerEdge XE9680L.

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