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Four green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 256GB (4x64GB) 4800MHz ECC RDIMM Supermicro H14DST-F

SKU CH-K0WG-ZV61A

A 256 GB (4 × 64 GB) DDR5-4800 ECC registered RDIMM kit at 1.1 V, CL40, validated for the Supermicro H14DST-F 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 30 more
  • 256 GB total capacity from four 64 GB modules
  • DDR5-4800 speed with CL40 latency for rated throughput
  • Registered ECC design offloads the controller and corrects single-bit errors
  • 1 V operation matches the platform's voltage requirement
  • Verified fit for Supermicro H14DST-F motherboard

Server Memory Kit

This 256GB kit contains four 64GB DDR5 registered DIMMs built for the Supermicro H14DST-F motherboard. Each module runs at 4800MHz with CL40 latency at 1.1V. The 2Rx4 organisation and ECC registration match the board's memory controller requirements exactly.

Registered ECC Architecture

Registered buffering reduces electrical load on the memory controller when all slots are populated. On-die ECC detects and corrects single-bit errors automatically, preventing silent data corruption and unplanned reboots in production workloads. The modules operate at the standard 1.1V DDR5 voltage.

288-Pin RDIMM Form Factor

The 288-pin registered DIMM form factor is the only type the H14DST-F accepts; UDIMM or SODIMM modules will not fit. No heat spreaders are fitted, so airflow clearance follows the motherboard's standard DIMM spacing. Verify the board's population order in its manual before installation.

How it compares

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

Price $6,195.99
Pricier than about 82% 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 $24.20 per GB
Pricier than about 69% 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

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Questions about this item

Will the 4x64GB DDR5 RDIMM kit need any firmware updates or component swaps after installation?

The modules are an exact-match upgrade for the Supermicro H14DST-F, so the memory controller recognises the 2Rx4 rank, 1.10V voltage and CL40 timing at full 4800MHz speed without further changes.

What limit appears first when the 256GB kit runs at DDR5-4800 continuously?

The registered (buffered) architecture offloads the memory controller, allowing every slot to stay fully populated at rated capacity and speed under sustained load.

How much heat and power do the four 64GB DDR5 RDIMMs produce during all-day operation?

Each module runs at 1.10V with no heat spreader; the registered design reduces electrical load on the controller, keeping power draw and thermals low for continuous server use.

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