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Six green DDR5 RDIMM modules in a row, black chips, no heat spreaders, gold edge connectors

NEMIX RAM

NEMIX RAM DDR5 4800 ECC Registered RDIMM 384GB (6×64GB) CL40 1.1V 2Rx4 288-pin memory upgrade

SKU CH-MXMK-SSA0C

384GB DDR5-4800 ECC Registered RDIMM kit (6×64GB) validated for Supermicro H14DSG-O-CPU servers

  • Total capacity384 GB (6 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 384GB 6X64GB

Show 30 more
  • 384 GB capacity with six 64 GB modules for dense server workloads
  • DDR5 4800 speed rated at PC5-38400 for high-throughput data paths
  • CL40 latency at 1.1 V for efficient registered operation
  • ECC and registered design corrects single-bit errors and offloads the memory controller
  • 288-pin RDIMM form factor validated for Supermicro H14DSG-O-CPU motherboard

Exact-match DDR5 server kit

This 384GB kit delivers six 64GB DDR5 4800 RDIMMs built to the Supermicro H14DSG-O-CPU motherboard's exact rank, voltage and timing requirements. Registered ECC architecture lets every slot run fully populated at rated speed while correcting single-bit errors before they reach production workloads.

288-pin registered form factor

Modules use the 288-pin RDIMM interface this board requires, not UDIMM or SODIMM, and operate at 1.1V with CL40 latency. Major OEM Samsung, Micron or Hynix chips provide enterprise stability without a heat spreader, relying on server chassis airflow for cooling.

Upgrades from lower-capacity DDR5 RDIMMs

The jump is worth it when your workload needs the full 384GB ceiling this motherboard supports and you can follow the manual's population order. Buyers who need a different DIMM type, non-ECC operation or a smaller maximum capacity should verify their platform's qualified-vendor list first.

How it compares

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

Price $9,628.99
Pricier than about 87% 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 $25.08 per GB
Pricier than about 70% 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 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
Memory rank2Rx4
Heat spreaderNo
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 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Does the DDR5 4800 interface limit the kit to PC5-38400 speeds?

The kit is rated for DDR5 4800 (PC5-38400) and will operate at that speed when the motherboard memory controller supports it.

Will the 288-pin RDIMM modules fit the Supermicro H14DSG-O-CPU motherboard?

The 288-pin Registered RDIMM form factor matches the board's DIMM slots; UDIMM or SODIMM modules would not fit.

How should the six 64GB modules be installed, and what step is often missed?

Follow the motherboard manual's population order for all six slots; the step often missed is verifying the exact slot sequence before inserting modules.

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