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Sixteen green DDR5 RDIMM modules without heat spreaders arranged in a kit

NEMIX RAM

NEMIX RAM 768GB 16x48GB DDR5 4800 CL40 1.1V 2Rx8 ECC RDIMM memory upgrade

SKU CH-5Z70-HW3GN

A 768GB kit of sixteen 48GB DDR5 4800 CL40 2Rx8 registered ECC RDIMMs at 1.1V, validated for the Supermicro H14SST-G motherboard

  • Total capacity768 GB (16 × 48 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 768GB 16X48GB

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  • 768 GB total capacity from sixteen 48 GB modules
  • DDR5 4800 MT/s speed with CL40 latency for rated throughput
  • Registered ECC architecture offloads the controller and corrects single-bit errors
  • 10 V operating voltage matches the motherboard's memory specification
  • 288-pin RDIMM form factor fits the Supermicro H14SST-G motherboard

Exact-match server upgrade

This 768 GB kit contains sixteen 48 GB DDR5 RDIMMs rated at 4800 MT/s with CL40 latency and 1.10 V operation. It is built for the Supermicro H14SST-G motherboard and will only work in systems that accept 288-pin registered ECC modules.

Thermals noise and power

Registered buffering reduces electrical load on the memory controller when all slots are populated, allowing the full 768 GB to run at the rated 4800 MT/s without extra voltage. The modules operate at the standard 1.10 V DDR5 level and have no heat spreaders, so airflow across the DIMM slots handles cooling.

Registered ECC requirement

The motherboard must support 2Rx8 registered ECC RDIMMs; unbuffered or non-ECC memory will not function in this configuration. Verify the system manual for approved population order and maximum supported capacity before installation.

How it compares

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

Price $16,835.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (16 × 48 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $21.92 per GB
Pricier than about 67% 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 numberMR38400-4828K16
Total capacity768 GB (16 × 48 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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items768 GB 16 × 48 GB DDR5 4800 MHz PC5-38400 2Rx8 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 16 DDR5 RDIMMs on the Supermicro H14SST-G without violating the board's population order?

Consult the motherboard manual for the exact slot sequence; populate all 16 slots with the 2Rx8 registered modules so the memory controller sees the full 768 GB at DDR5 4800.

What maintenance or replacement will the 768 GB DDR5 ECC kit need over its service life?

No scheduled maintenance is required; ECC corrects single-bit errors automatically, and the lifetime replacement warranty covers any module that fails.

What limit appears first when the 16 2Rx8 modules run sustained workloads at 4800 MT/s?

The memory controller's maximum supported capacity and rank-per-channel limit govern sustained operation; the board's population rules define the practical ceiling.

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