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Four green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (4×16GB) DDR5-4800 CL40 1.1V ECC RDIMM 1Rx8 Supermicro H14SSF

SKU CH-2YFH-TW6CD

A 64 GB kit of four 16 GB DDR5-4800 CL40 1.1 V ECC registered RDIMMs validated for the Supermicro H14SSF motherboard

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 64GB 4X16GB

Show 24 more
  • 64 GB kit populates four slots at rated DDR5-4800 speed
  • Registered ECC RDIMM design corrects single-bit errors on the fly
  • 1 V operation reduces power draw per module
  • 1Rx8 rank layout matches Supermicro H14SSF population rules
  • CL40 CAS latency meets server memory controller timing requirements

Exact-Match Server Memory Upgrade

This 64GB kit contains four 16GB DDR5-4800 Registered ECC RDIMMs built to the precise 1.1V, CL40, 1Rx8 specification the Supermicro H14SSF memory controller expects. The modules arrive tested as a matched set so the board recognises the full capacity and runs at its rated PC5-38400 speed without manual tuning.

Built for Fully Populated Enterprise Boards

IT teams running the H14SSF with every DIMM slot filled gain the registered buffer's electrical offload and on-the-fly single-bit error correction that prevents silent data corruption. Workstations needing unbuffered UDIMMs, laptops requiring SODIMMs, or any system that cannot accept 288-pin Registered ECC modules should look elsewhere.

Kit-Level Validation Changes the Install

Shipping four sticks as a single validated kit removes the guesswork of mixing loose DIMMs with different rank structures or voltage tolerances. The pre-matched set lets you follow the motherboard manual's population order and reach full 64GB capacity on first boot.

How it compares

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

Price $1,931.99
Pricier than about 68% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $30.19 per GB
Pricier than about 86% 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 numberMR38400-618K4
Total capacity64 GB (4 × 16 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 rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB 4 × 16 GB DDR5 4800 MHz PC5-38400 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Must my Supermicro H14SSF motherboard have four free 288-pin DDR5 RDIMM slots to install this 64 GB kit?

Yes, the kit contains four 16 GB modules that each occupy one 288-pin DDR5 RDIMM slot, so four empty slots are required for full installation.

Will these CL40 1.1 V registered ECC modules run at DDR5-4800 if my board currently uses slower DDR5 RDIMMs?

The modules are rated for DDR5-4800 (PC5-38400) at CL40 and 1.1 V; the system will operate all populated slots at the highest common speed supported by the memory controller and installed DIMMs.

How can I confirm the kit is running at DDR5-4800 with ECC active after installation?

Check the BIOS memory information or OS hardware report for a speed of 4800 MT/s, CL40 timings, 1.1 V voltage and ECC status shown as enabled or active.

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