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Four green DDR5 RDIMM modules without heat spreaders in a kit

NEMIX RAM

NEMIX RAM 512GB 4x128GB DDR5 6400 CL52 1.1V ECC RDIMM Kit Supermicro H13DSG-OM

SKU CH-VQ6S-WTFPY

A 512GB registered ECC DDR5 kit of four 128GB modules running at 6400MHz CL52 and 1.1V, validated for the Supermicro H13DSG-OM motherboard

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 512 GB total capacity from four 128 GB modules
  • DDR5 6400 speed with CL52 latency at 1.1 V
  • Registered ECC design corrects single-bit errors automatically
  • 288-pin RDIMM form factor matches Supermicro H13DSG-OM requirements
  • Built with major OEM Samsung, Micron or Hynix chips

Capacity and form factor

This kit delivers 512GB of DDR5 memory across four 128GB registered DIMMs. Each module uses a 288-pin RDIMM form factor with 2Rx4 organisation, built for servers that require fully populated slots at maximum density.

Registered ECC architecture

Registered buffering reduces electrical load on the memory controller, allowing all four slots to operate at the rated 6400 MT/s speed. On-die ECC detects and corrects single-bit errors in flight, protecting data integrity without halting the system.

Supermicro H13DSG-OM compatibility

The modules are validated for the Supermicro H13DSG-OM motherboard, matching its DDR5-6400 registered DIMM requirements. Verify the board's population rules and maximum supported capacity in its manual before installation.

How it compares

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

Price $16,175.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $31.59 per GB
Pricier than about 90% 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 numberMR51200-724K4
Total capacity512 GB (4 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items512 GB 4 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will the 2Rx4 registered ECC RDIMMs need any firmware updates or periodic replacement in the Supermicro H13DSG-OM?

The 2Rx4 registered ECC RDIMMs are a precise rank, voltage and timing match for the H13DSG-OM memory controller, so they are recognised at full 512 GB capacity and rated DDR5 6400 speed without firmware changes. No scheduled replacement is required; the modules carry a lifetime replacement warranty.

What sustained-workload limit appears first with four 128 GB DDR5 6400 CL52 modules fully populated?

With all four 128 GB 2Rx4 RDIMMs installed, the memory controller reaches its maximum supported capacity of 512 GB before any bandwidth or latency ceiling is hit at the rated DDR5 6400 CL52 speed.

How much heat and power do the 1.1 V DDR5 6400 RDIMMs produce when the server runs 24/7?

Each 128 GB module operates at 1.1 V without a heat spreader; total kit power scales with the four 2Rx4 RDIMMs at DDR5 6400, and the registered buffer reduces controller load, keeping thermals within standard server airflow limits.

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