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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 256GB (8×32GB) 6400MHz CL52 1.1V ECC RDIMM Supermicro H14DSG-OD memory upgrade

SKU CH-KYM8-KDQ6H

A 256 GB DDR5 ECC RDIMM kit with eight 32 GB modules at 6400 MHz, CL52, 1.1 V for Supermicro H14DSG-OD servers

  • 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 capacity with eight 32 GB modules expands server memory headroom
  • DDR5-6400 speed and CL52 latency match the board's rated timing for full throughput
  • Registered ECC architecture offloads the controller and corrects single-bit errors automatically
  • 10 V operation meets the platform's voltage spec for stable full-population loads
  • Exact-fit 288-pin RDIMM kit validated for Supermicro H14DSG-OD motherboard

Exact DDR5 RDIMM kit for Supermicro H14DSG-OD

This NEMIX RAM kit supplies 256 GB across eight 32 GB DDR5-6400 registered ECC modules. Each stick runs at 1.1 V with CL52 timing and a 2Rx8 rank layout that matches the motherboard's memory controller requirements. The 288-pin RDIMM form factor fits the server board's DIMM slots directly.

Suited for fully populated H14DSG-OD servers

Administrators expanding a Supermicro H14DSG-OD to its maximum supported capacity with verified registered ECC memory will find this kit plugs in and runs at rated speed without manual tuning. Builders needing UDIMM, SODIMM or non-ECC modules for other platforms cannot use these registered DIMMs.

Registered ECC with 2Rx8 organisation

The dual-rank registered design offloads the memory controller so all eight slots operate at full DDR5-6400 throughput while ECC corrects single-bit errors in flight. This combination of registration, ECC and 2Rx8 density is the single specification that determines whether the motherboard recognises the full 256 GB at rated performance.

How it compares

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

Price $9,993.99
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 $39.04 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 motherboard must I already own for this 256GB DDR5 6400MHz CL52 ECC RDIMM kit to be recognised at full capacity?

The kit is spec-matched for the Supermicro H14DSG-OD motherboard; its memory controller expects the exact 2Rx8 rank, 1.10V voltage and CL52 timing so all eight slots populate at the rated 6400MHz speed.

Can I keep my existing DDR5 RDIMMs and add these eight 32GB modules alongside them?

Mixing ranks or capacities breaks the board's population rules; the H14DSG-OD requires identical 2Rx8 Registered DIMMs in every occupied slot, so you must replace any older modules with this full 8×32GB kit.

How do I verify the kit is running at 6400MHz with ECC active after installation?

Enter the BIOS or run a tool such as dmidecode — each DIMM should report 6400MT/s, CL52, 1.10V, Registered ECC and 2Rx8 organisation across all eight slots.

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