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Green bare circuit board with gold-edge connector and black memory chips

NEMIX RAM

NEMIX RAM 64GB DDR5 6400 PC5-51200 2Rx4 CL52 1.1V ECC RDIMM Supermicro H13SST-GC memory upgrade

SKU CH-Q89K-Q9NX8

64GB DDR5-6400 registered ECC RDIMM at 1.1V CL52, 2Rx4, validated for Supermicro H13SST-GC servers

  • Total capacity64 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Exact-match DDR5-6400 upgrade installs at full rated speed
  • 64 GB ECC RDIMM capacity fills one slot completely
  • Registered buffer stabilises fully populated server configurations
  • 1 V operation matches board voltage requirements precisely
  • CL52 latency and 2Rx4 rank align with controller expectations

Exact-Match Server Upgrade

This 64 GB DDR5 6400 PC5-51200 registered ECC RDIMM is built for the Supermicro H13SST-GC motherboard. It delivers the precise 2Rx4 rank, 1.10 V operating voltage and CL52 timing that the board's memory controller expects for full-capacity recognition at rated speed.

Pre-Installation Checklist

Consult your system or motherboard manual for supported capacities, approved DIMM population order and installation steps before ordering. Server memory support varies by model and the 288-pin registered form factor this board requires is not interchangeable with UDIMM or SODIMM modules.

Registered ECC Reliability

The registered architecture offloads the memory controller so every slot runs fully populated at full capacity while ECC corrects single-bit errors on the fly to stop silent data corruption. Major OEM Samsung, Micron or Hynix chips underpin the build and the modules ship without a heat spreader for standard server airflow.

How it compares

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

Price $2,081.99
Pricier than about 69% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $32.53 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 numberMR51200-924K1
Total capacity64 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 items64 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Does the 64GB DDR5 6400 kit include everything needed for the Supermicro H13SST-GC, or must anything else be purchased?

The package contains one 64GB 288-pin DDR5 RDIMM rated at 6400 MT/s, CL52, 1.10 V, 2Rx4 registered ECC. No extra parts are required for installation.

How do I decide between the available capacities or versions for the H13SST-GC?

This listing is a single 64GB module (part number MR51200-924K1). Choose it when your configuration calls for one 64GB registered ECC DIMM; add multiple identical modules to reach the total capacity your board supports.

What does the 6400 MT/s rating mean once the module is installed in the server?

The memory controller will train the DIMM at 6400 MT/s with CL52 latency at 1.10 V, delivering the rated DDR5-6400 throughput while ECC and registered buffering maintain data integrity across all populated slots.

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