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Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 4800 ECC RDIMM 1.5TB (12×128GB) CL40 1.1V Supermicro H13DSG-OM memory upgrade

SKU CH-G3JD-MDH3R

A 1.5 TB DDR5-4800 registered ECC kit of twelve 128 GB modules at 1.1 V CL40, built for the Supermicro H13DSG-OM motherboard

  • Total capacity1.5 TB (12 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 1.5TB 12X128GB

Show 30 more
  • 5 TB capacity from 12 matched 128 GB modules
  • DDR5 4800 speed with CL40 latency for rated throughput
  • Registered ECC design corrects single-bit errors automatically
  • 1 V operation matches server memory controller specs
  • Verified fit for Supermicro H13DSG-OM motherboard

Capacity and fit

This 1.5 TB kit contains twelve 128 GB DDR5 RDIMMs built for the Supermicro H13DSG-OM motherboard. Registered ECC modules with 2Rx4 organisation and CL40 timing match the board's memory controller requirements exactly. The kit is intended for administrators who need maximum supported capacity in a single validated package.

Build integration

Each 288-pin RDIMM installs directly into the server's DDR5 slots without adapters or converters. Registered buffering reduces electrical load on the memory controller so all twelve slots can be populated at the rated 4800 MT/s speed. ECC circuitry corrects single-bit errors automatically, protecting data integrity in production workloads.

Thermals and power

Modules operate at the standard DDR5 voltage of 1.1 V and ship without heat spreaders, relying on the chassis airflow designed for the H13DSG-OM platform. Registered architecture keeps per-module power draw consistent even with every slot filled. The combination of low voltage and server-directed cooling maintains stable temperatures under sustained load.

How it compares

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

Price $46,121.99
Pricier than about 95% of the 21,161 comparable items (median $397.99).
Total capacity 1.5 TB (12 × 128 GB)
Higher than about 97% of the 20,941 comparable items (median 32 GB).
Price per GB $30.75 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 numberMR38400-724K12
Total capacity1.5 TB (12 × 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 items1.5 TB 12 × 128 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

What sustained-use limit appears first when all 12 slots are populated on the Supermicro H13DSG-OM?

The registered ECC architecture lets every slot run fully populated at the rated 1.5 TB capacity without down-clocking, so the first limit is the motherboard's maximum supported memory.

How much power and heat does the 12-module kit add when the server runs 24/7?

Each 128 GB DDR5 RDIMM operates at 1.1 V, so the complete kit draws roughly 12 × 1.1 V × rated current, producing modest heat that the server's existing airflow handles without extra cooling.

What must the buyer already own for this 1.5 TB kit to function?

A Supermicro H13DSG-OM motherboard with all 12 DDR5 RDIMM slots free, a compatible CPU that supports 2Rx4 registered ECC memory, and the board manual to confirm population order.

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