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Six green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 768GB (6x128GB) DDR5 4800MHz CL40 2Rx4 ECC Registered RDIMM memory upgrade

SKU CH-XP43-YFWW5

Adds 768 GB of DDR5 registered ECC memory in a six-module kit running at 4800 MHz CL40 for Supermicro H14DST-F servers

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 768GB 6X128GB

Show 30 more
  • 768 GB total capacity from six 128 GB modules
  • DDR5 4800 speed rated for PC5-38400 bandwidth
  • CL40 latency at 1.10 V registered operation
  • 2Rx4 ECC registered design corrects single-bit errors
  • 288-pin RDIMM form factor fits Supermicro H14DST-F

Exact-match DDR5 RDIMM kit

This 768 GB kit contains six 128 GB DDR5 4800 CL40 registered ECC RDIMMs built to the exact rank, voltage and timing the Supermicro H14DST-F motherboard expects. It is designed for server administrators who need every slot populated at full rated speed without manual tuning.

Upgrade from partial or mixed-capacity configs

Replacing a partially filled or mixed-rank memory set with this matched 6 x 128 GB kit lets the memory controller run all channels at DDR5 4800 without down-clocking. The jump is worth it when your workload needs the full 768 GB capacity and the stability of single-bit error correction on every module.

Fits Supermicro H14DST-F population rules

The 288-pin registered form factor matches the board's required DIMM type, and the 1.1 V operating voltage aligns with the platform's memory subsystem. The kit frees you from verifying individual module compatibility, but you must still follow the motherboard manual for approved population order and maximum supported capacity per socket.

How it compares

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

Price $25,227.99
Pricier than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (6 × 128 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $32.85 per GB
Pricier than about 90% 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 numberMR38400-724K6
Total capacity768 GB (6 × 128 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 items768 GB 6 × 128 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

Will these 288-pin DDR5 RDIMMs fit the Supermicro H14DST-F motherboard?

Yes, the kit is verified for the Supermicro H14DST-F and uses the exact 288-pin registered form factor that board requires.

What is the correct installation order for the six 128GB modules?

Follow the motherboard manual's DIMM population sequence; the board's memory-population rules dictate which slots must be filled first for full 768GB recognition.

Do these Samsung, Micron or Hynix chips need any firmware updates or periodic maintenance?

No firmware updates are required; the modules run at 1.1V with on-die ECC and registered buffering, so they operate maintenance-free for the system's lifetime.

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