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Six green DDR5 RDIMM modules, black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 384GB (6x64GB) DDR5 4800 CL40 ECC RDIMM Server Memory Upgrade

SKU CH-GMBX-1BK4S

A 384GB six-module kit of DDR5 4800 CL40 ECC registered DIMMs built for Supermicro servers

  • Total capacity384 GB (6 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 384GB total capacity from six 64GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered RDIMM ensures data integrity
  • 1V operation reduces power draw
  • Compatible with SuperMicro SYS-121H-TNR and SYS-221H series

Capacity and Compatibility

This kit provides 384GB of DDR5 memory in six 64GB registered ECC modules. It is built for Supermicro Hyper SuperServer systems including the SYS-121H-TNR, SYS-221H-TNR and SYS-221H-TN24R where maximum capacity and error correction are required.

Platform Verification

Confirm that your motherboard accepts 288-pin DDR5 RDIMMs and supports a 2Rx4 organisation at 1.1V. The memory controller must be able to address the full 384GB across all channels and enable ECC functionality in the BIOS.

Build Integration

The modules operate at DDR5 4800 (PC5-38400) with CL40 latency and contain no heat spreaders, so airflow across the DIMM slots must be sufficient. Six slots are consumed, leaving any remaining channels free for further expansion if the platform allows.

How it compares

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

Price $10,869.99
Pricier than about 88% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (6 × 64 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $28.31 per GB
Pricier than about 80% 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 numberMR38400-924K6
Total capacity384 GB (6 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items384 GB (6 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the 384GB kit include all six 64GB modules or must they be purchased separately?

The kit contains all six 64GB DDR5 4800 CL40 ECC RDIMM modules in a single package.

Should I choose the 6x64GB 384GB kit or a smaller capacity for my SuperMicro SYS-221H-TNR?

Select the 384GB kit when the workload needs the full 384GB capacity across all six slots; choose a smaller kit if the server has fewer populated channels.

What does the DDR5 4800 PC5-38400 rating mean once installed in a SuperMicro Hyper SuperServer?

The modules run at 4800 MT/s with CL40 latency at 1.10V, delivering the rated PC5-38400 bandwidth in compatible SuperMicro systems.

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