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Six black rectangular DDR5 RDIMM modules with gold edge connectors and no heat spreaders

NEMIX RAM

NEMIX RAM 768GB 6x128GB DDR5 4800MHz CL40 2Rx4 ECC RDIMM Supermicro H14SHM memory upgrade

SKU CH-AY74-WFP9X

A 768GB DDR5-4800 registered ECC kit of six 128GB 2Rx4 RDIMMs at 1.1V CL40, validated for the Supermicro H14SHM motherboard

  • 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 24 more
  • 768 GB total capacity from six 128 GB modules
  • DDR5 4800 speed with CL40 latency for rated throughput
  • Registered ECC RDIMM design corrects single-bit errors automatically
  • 1 V operation matches the server memory controller exactly
  • 288-pin form factor validated for Supermicro H14SHM motherboard

768GB DDR5 RDIMM kit for Supermicro H14SHM

This six-module kit delivers 768GB of DDR5 ECC registered memory built to the exact specifications of the Supermicro H14SHM motherboard. Each 128GB module operates at 4800MHz with CL40 latency at 1.1V. The 2Rx4 registered design ensures the memory controller recognises every slot at full capacity.

Full 768GB capacity with registered ECC stability

Populating all six slots provides the maximum supported density for memory-intensive workloads such as virtualisation, in-memory databases and large-scale analytics. Registered buffering offloads the memory controller while ECC corrects single-bit errors on the fly, preventing silent data corruption. The kit runs at its rated 4800MHz speed without manual tuning.

288-pin RDIMM form factor requires compatible

These modules fit only DDR5 RDIMM slots that support 2Rx4 registered ECC DIMMs at 1.1V. They will not work in UDIMM, SODIMM or non-ECC platforms. Verify your motherboard manual for approved population order and maximum capacity per channel before installation. No heat spreaders are included, so airflow must be managed by the chassis.

How it compares

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

Price $23,579.99
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 $30.70 per GB
Pricier than about 88% 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

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Questions about this item

Will this 768GB DDR5-4800 2Rx4 RDIMM kit run at rated speed alongside existing DDR5 modules in my Supermicro H14SHM?

This kit is spec-matched to the H14SHM memory controller; installing it in the recommended population order lets the server recognise the full 768GB at DDR5-4800 CL40 without manual tuning.

How can I verify the 6x128GB ECC registered modules are operating correctly after installation?

The server POST will display 768GB total capacity and DDR5-4800 speed; enable ECC in BIOS and review IPMI logs for corrected error counts to confirm error-correction is active.

What ships in the box and is anything else required for the Supermicro H14SHM?

The box contains the 6x128GB DDR5 4800MHz CL40 2Rx4 1.1V 288-pin ECC RDIMM kit; no extra cables or brackets are needed, but consult the motherboard manual for approved slot population before installing.

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