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Six green DDR5 RDIMM modules in a row, no heat spreaders, gold edge connectors visible

NEMIX RAM

NEMIX RAM 768GB (6x128GB) DDR5 4800 CL40 1.1V ECC RDIMM Supermicro H14DSH memory upgrade

SKU CH-VX34-2ANW5

A 768 GB DDR5 registered ECC memory kit of six 128 GB modules running at 4800 MT/s CL40 1.1 V, validated for the Supermicro H14DSH 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

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  • 768 GB total capacity from six 128 GB modules for maximum server density
  • DDR5 4800 speed with CL40 latency delivers rated throughput on the H14DSH
  • 1 V registered ECC RDIMM architecture offloads the memory controller for stable full-population operation
  • 288-pin 2Rx4 form factor matches the motherboard's exact slot and population requirements
  • Lifetime replacement warranty with US-based technical support included

Exact-match DDR5 kit for Supermicro H14DSH

This 768 GB memory kit contains six 128 GB DDR5 4800 RDIMMs built to the board's exact rank, voltage and timing requirements. Each module is a 2Rx4 registered ECC DIMM running at 1.1 V with CL40 latency. The 288-pin form factor matches the H14DSH memory slots so the system recognises the full capacity at rated speed.

Registered ECC architecture for stable server

Registered buffering reduces electrical load on the memory controller when all slots are populated, while on-die ECC corrects single-bit errors before they affect data integrity. Modules operate at the standard 1.1 V DDR5 voltage with no heat spreaders, relying on chassis airflow for thermal management. Power draw follows the DDR5 4800 specification for registered DIMMs.

Six-module kit simplifies full-channel population

The package delivers the complete 768 GB upgrade in a single matched set, eliminating the need to source individual DIMMs or verify rank mixing rules. Lifetime replacement coverage and US-based technical support are included. Buyers who need a different total capacity or a non-registered UDIMM format should select an alternative kit.

How it compares

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

Price $22,131.99
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 $28.82 per GB
Pricier than about 81% 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 numberMR38400-724K6
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

How do I install the six 128 GB DDR5 RDIMM modules in the Supermicro H14DSH, and which population step is most often missed?

Fill the slots in the exact order shown in the H14DSH manual for a six-DIMM configuration; the step most often missed is confirming that every module is 2Rx4 registered ECC at 1.1 V so the memory controller recognises the full 768 GB at DDR5-4800.

What maintenance or replacement will this memory kit need during its service life?

No routine maintenance is required; if a module fails the lifetime replacement warranty covers a direct swap of the defective 128 GB DDR5 RDIMM.

What limit appears first when the kit runs at full load continuously?

The DDR5-4800 CL40 timing and 1.1 V operating voltage are the fixed electrical limits; sustained heavy workloads will hit the memory controller's maximum supported bandwidth before any thermal throttle occurs.

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