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Green rectangular DDR5 RDIMM module with black memory chips and gold edge connectors no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 4800MHz ECC Registered RDIMM 2Rx4 CL40 1.1V Supermicro H14DST-F memory upgrade

SKU CH-NPHF-9ZRPZ

128 GB DDR5 4800 MHz ECC registered RDIMM, 2Rx4 CL40 1.1 V, validated for Supermicro H14DST-F servers

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB

Show 30 more
  • 128GB capacity lets you fully populate Supermicro H14DST-F slots
  • DDR5 4800MHz PC5-38400 runs at the board's rated speed
  • Registered ECC 2Rx4 architecture offloads the memory controller and corrects single-bit errors
  • 1V CL40 timing matches the controller's exact voltage and latency requirements
  • 288-pin RDIMM form factor fits the motherboard's DDR5 slots precisely

128GB DDR5-4800 ECC RDIMM for Supermicro H14DST-F

This 128GB DDR5 4800MHz registered ECC module is built for the Supermicro H14DST-F motherboard. It delivers the exact 2Rx4 rank, 1.1V voltage and CL40 timing the platform expects. The 288-pin RDIMM form factor ensures full-capacity recognition in every supported slot. It targets administrators upgrading memory capacity on this specific server board.

Before ordering check your system manual

Verify the motherboard manual for approved DIMM population order and maximum supported capacity per channel. Confirm the board requires registered RDIMMs and not unbuffered UDIMMs or SODIMMs. Ensure the BIOS revision in use supports the stated speed and rank configuration. The module operates at 1.1V and CL40; the platform must accept these values.

Registered ECC design with major OEM chips

The registered architecture buffers address and command signals to reduce load on the memory controller when all slots are populated. On-die ECC corrects single-bit errors automatically to prevent silent data corruption. Samsung Micron or Hynix DRAM chips are used depending on supply. No heat spreader is fitted so airflow across the bare PCB is required in dense chassis.

How it compares

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

Price $3,979.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $31.09 per GB
Pricier than about 89% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-724K1
Total capacity128 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 items128 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

What comes in the box with the 128GB DDR5 4800MHz ECC RDIMM kit?

The kit contains one 128GB 288-pin DDR5 RDIMM module rated at 4800MHz PC5-38400, CL40, 1.1V, 2Rx4 registered ECC. No heat spreader, cables, or tools are included.

Should I choose the 128GB 2Rx4 CL40 version or a different capacity for my Supermicro H14DST-F?

Select this exact 128GB 2Rx4 CL40 1.1V RDIMM when your board's memory population rules call for a registered ECC DIMM of that rank, voltage, and timing; other capacities or ranks may not be recognised at full speed.

What does the 4800MHz PC5-38400 rating mean once the module is installed in the server?

The module will run at DDR5-4800 with a CAS latency of 40 at 1.1V, delivering the bandwidth and error-correction the H14DST-F memory controller expects for stable full-capacity operation.

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