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Six green 288-pin DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 768GB (6x128GB) DDR5 4800 ECC RDIMM CL40 1.1V 288-pin SuperMicro Server Memory Upgrade

SKU CH-N067-7G5D6

A 768 GB DDR5 ECC registered server memory kit of six 128 GB modules running at 4800 MT/s with CL40 latency and 1.1 V operation, validated for SuperMicro SuperServer platforms

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 768GB total capacity from six 128GB modules
  • DDR5 4800 speed for high-throughput server workloads
  • ECC registered design protects data integrity under load
  • 1V operation reduces power draw in dense configurations
  • Validated for SuperMicro SuperServer SSG-521E-E1CR24H and SSG-521E-E1CR24L

768GB DDR5 4800 ECC RDIMM Kit

This NEMIX RAM kit delivers 768GB across six 128GB DDR5 4800 registered DIMMs with ECC and CL40 latency. It targets Supermicro SuperServer SSG-521E-E1CR24H and SSG-521E-E1CR24L platforms running memory-intensive workloads. The modules operate at 1.1V using major OEM Samsung, Micron or Hynix chips in a 4Rx4 configuration.

Installation and Common Issues

The 288-pin RDIMMs install in standard DDR5 server slots and the kit is designed for straightforward insertion. Registered modules require correct population order per the Supermicro manual; mis-seating or mixing ranks can prevent POST. No heat spreaders are fitted, so ensure chassis airflow meets the platform specification.

Pre-Order Compatibility Checks

Verify your Supermicro motherboard or SuperServer model appears in the supported list: SSG-521E-E1CR24H, SSG-521E-E1CR24L or X13SEDW. Confirm the BIOS revision supports 128GB 4Rx4 RDIMMs at DDR5 4800 and that the memory configuration matches the validated population rules. Buyers needing non-ECC unbuffered DIMMs or a different capacity per module should look elsewhere.

How it compares

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

Price $22,939.99
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 $29.87 per GB
Pricier than about 85% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-744K6
Total capacity768 GB (6 × 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 systemsSupermicro
In the box
Included items768 GB (6 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I verify the 768GB DDR5 4800 kit is running at CL40 and 1.1V after installation?

Enter the server BIOS or use a tool like CPU-Z to confirm the memory operates at 4800 MT/s with CAS latency 40 and 1.10V across all six modules.

What is included in the MR38400-744K6 package and do I need extra parts?

The box contains six 128GB DDR5 4800 ECC RDIMM modules for a total of 768GB; no additional components are required for installation.

Which capacity version should I choose for a SuperMicro SSG-521E-E1CR24H?

This 768GB kit (6 x 128GB) is the listed configuration validated for the SSG-521E-E1CR24H and similar SuperMicro platforms.

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