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Sixteen green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 256GB (16×16GB) DDR5 6400 CL52 1.1V ECC RDIMM Supermicro H14DSG-OM

SKU CH-NA9J-9RJSG

256GB DDR5 6400 ECC RDIMM kit with 16×16GB modules at CL52 and 1.1V for Supermicro H14DSG-OM

  • Total capacity256 GB (16 × 16 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 256 GB total capacity from a 16 × 16 GB kit
  • DDR5 6400 speed with CL52 latency at 1.1 V
  • Registered ECC RDIMM architecture prevents data corruption under load
  • 1Rx8 rank and 288-pin layout match Supermicro H14DSG-OM requirements
  • Lifetime replacement warranty with US-based technical support included

256GB DDR5 6400 ECC RDIMM kit

This 256GB kit contains sixteen 16GB DDR5 6400 registered ECC RDIMMs built for the Supermicro H14DSG-OM motherboard. Each module runs at 1.1V with CL52 latency and a 1Rx8 organisation. The registered design lets the memory controller address every populated slot without signal degradation.

Sustained enterprise workloads

Registered buffering offloads the memory controller so all sixteen slots operate at the rated 6400 speed under continuous load. ECC detects and corrects single-bit errors in real time, preventing silent data corruption during long-running compute or database tasks. The 1.1V operating voltage helps maintain thermal stability across the fully populated array.

Verify motherboard population rules

Check the Supermicro H14DSG-OM manual for approved DIMM population order and maximum supported capacity per channel before ordering. Confirm the board requires 288-pin RDIMMs and not UDIMM or SODIMM form factors. Ensure your BIOS revision supports the full sixteen-module configuration at DDR5 6400.

How it compares

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

Price $7,483.99
Pricier than about 84% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (16 × 16 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $29.23 per GB
Pricier than about 83% 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 numberMR51200-618K16
Total capacity256 GB (16 × 16 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 rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 16 × 16 GB DDR5 6400 MHz PC5-51200 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How much heat and power does the 1.10V DDR5 kit draw when the Supermicro H14DSG-OM runs fully populated all day?

Each 16 GB module operates at 1.10 V with a CL52 1Rx8 registered design, so the memory controller sees a predictable load and the lower DDR5 voltage reduces sustained power draw compared to higher-voltage alternatives.

What motherboard slot type must the Supermicro H14DSG-OM provide for these 288-pin registered DIMMs to be recognised at 256 GB?

The board needs 288-pin DDR5 RDIMM slots; the kit is built to the exact rank, voltage and timing the controller expects, so all sixteen modules register at full capacity and rated 6400 MT/s speed.

Will the CL52 registered ECC modules work alongside older DDR5 RDIMMs still installed in the same system?

Mixing ranks, voltages or timings can prevent the memory controller from training all slots at 6400 MT/s; the manufacturer advises checking the H14DSG-OM manual for approved population rules before combining kits.

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