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Four green DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM 256GB (4×64GB) DDR5-4800 ECC RDIMM CL40 2Rx4 1.1V Supermicro H14SSF memory upgrade

SKU CH-T8M4-NCGQC

256 GB kit of four 64 GB DDR5-4800 registered ECC RDIMMs at CL40 and 1.1 V, validated for the Supermicro H14SSF motherboard

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

Show 24 more
  • 256 GB capacity from four 64 GB modules for dense server workloads
  • DDR5-4800 speed with CL40 latency matches board-rated performance
  • ECC and registered design corrects errors and stabilises full population
  • 10 V operation meets DDR5 standard for efficient power use
  • 288-pin RDIMM form factor fits Supermicro H14SSF memory slots

Exact-match DDR5-4800 ECC RDIMM kit

This 256GB kit contains four 64GB DDR5-4800 registered ECC RDIMMs built to the Supermicro H14SSF motherboard's exact specifications. The modules run at 1.1V with CL40 latency and a 2Rx4 rank structure so the memory controller recognises the full capacity at rated speed. It is intended for administrators upgrading or populating that specific server platform.

Verify motherboard population rules first

Consult the Supermicro H14SSF manual for supported capacities, approved DIMM slot order and any BIOS requirements before ordering. The board requires 288-pin registered RDIMMs; unbuffered or SODIMM modules will not fit or function. Confirm the maximum memory per channel and total capacity your configuration allows.

Low-voltage registered design runs cool and quiet

Operating at 1.1V, the DDR5 RDIMMs draw minimal power and generate little heat even with all four slots populated. Registered buffering reduces electrical load on the memory controller, aiding stability under sustained workloads. No heat spreaders are fitted, so airflow through the server chassis handles thermal management silently.

How it compares

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

Price $7,241.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $28.29 per GB
Pricier than about 79% 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 numberMR38400-924K4
Total capacity256 GB (4 × 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 items256 GB 4 × 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

What comes in the 256GB kit and do I need anything else to install it?

The kit includes four 64GB DDR5-4800 ECC Registered RDIMMs. No extra parts are required; the modules plug directly into the Supermicro H14SSF motherboard's 288-pin slots.

Should I choose this 256GB (4×64GB) kit or a different capacity for my H14SSF?

This 256GB kit uses 2Rx4 modules at 1.1V CL40, matching the board's qualified memory list. Choose it when your workload needs the full 256GB; select a smaller kit only if your configuration requires fewer populated slots.

What does the DDR5-4800 (PC5-38400) rating mean once the modules are running in the server?

The memory controller will operate the kit at 4800 MT/s with CL40 latency and 1.1V, delivering 38400 MB/s peak bandwidth per module while ECC and registered buffering maintain data integrity under full load.

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