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Eight green DDR5 RDIMM sticks in a row, no heat spreaders, gold edge connectors visible

NEMIX RAM

NEMIX RAM 256GB (8×32GB) DDR5 6400 CL52 1.1V 2Rx8 ECC Registered RDIMM memory upgrade

SKU CH-7QFZ-372CG

256 GB DDR5-6400 ECC Registered RDIMM kit validated for the Supermicro H14DSH motherboard

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 256 GB total capacity from eight 32 GB modules
  • DDR5 6400 speed with CL52 latency at 1.1 V
  • Registered ECC design offloads the memory controller and corrects single-bit errors
  • 288-pin RDIMM form factor matches Supermicro H14DSH motherboard requirements
  • Built with major-brand Samsung Micron or Hynix DRAM chips

Supermicro H14DSH DDR5 upgrade kit

This 256 GB kit contains eight 32 GB DDR5-6400 Registered ECC RDIMMs built for the Supermicro H14DSH motherboard. The modules arrive new and are validated to match the board's memory-population rules so every slot is recognised at full capacity. System administrators expanding memory on this platform can install the kit without guessing rank, voltage or timing.

Registered ECC RDIMM form factor

The 288-pin Registered (RDIMM) design is the single specification that decides fitment; the H14DSH requires RDIMMs and will not accept UDIMM or SODIMM modules. Each stick runs at 1.1 V with CL52 latency and a 2Rx8 organisation, exactly as the memory controller expects. Buyers whose boards need unbuffered or lower-density DIMMs cannot use this kit.

Sustained enterprise workloads

Registered buffering offloads the memory controller so all eight slots operate fully populated at rated speed during continuous operation. On-die ECC corrects single-bit errors on the fly, preventing silent data corruption and unplanned reboots under long-running server loads. The modules have no heat spreader and rely on chassis airflow for thermal management.

How it compares

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

Price $10,083.99
Pricier than about 87% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $39.39 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 numberMR51200-328K8
Total capacity256 GB (8 × 32 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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 8 × 32 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What does the DDR5 6400 CL52 rating mean for actual throughput on a Supermicro H14DSH?

The modules operate at 6400 MT/s with CL52 latency and 1.10 V, delivering the rated PC5-51200 bandwidth when the board's memory controller runs all eight slots fully populated.

How does the registered ECC RDIMM interface affect stability and slot population?

Registered buffering reduces electrical load on the controller so every slot can run at full speed, while ECC detects and corrects single-bit errors to prevent silent data corruption.

Will these 288-pin RDIMMs fit the H14DSH without clearance issues?

Yes, they use the standard 288-pin DDR5 RDIMM form factor with no heat spreader, matching the H14DSH's DIMM slots and population rules exactly.

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