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Eight green DDR5 RDIMM modules in a row, black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB 8x32GB DDR5 6400MHz CL52 ECC RDIMM Supermicro H14SSL-N memory upgrade

SKU CH-NKKR-KMMFS

Eight 32 GB DDR5 RDIMMs deliver 256 GB of registered ECC memory at 6400 MHz CL52 for the Supermicro H14SSL-N

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 8X32GB

Show 24 more
  • 256 GB capacity across eight 32 GB modules maximises server memory density
  • DDR5 6400 speed with CL52 latency delivers rated throughput for H14SSL-N
  • Registered ECC RDIMM architecture prevents data corruption and supports full population
  • 1 V operation matches the motherboard's memory controller specification exactly
  • Major OEM Samsung, Micron or Hynix chips provide enterprise-grade component reliability

Exact-match DDR5-6400 ECC RDIMM kit

This 256GB kit contains eight 32GB DDR5-6400 Registered ECC RDIMMs built to the 2Rx8, 1.1V, CL52 specification the Supermicro H14SSL-N memory controller expects. The modules are verified for full-capacity recognition at rated speed without manual tuning.

DDR5-6400 speed ceiling and population rules

The DDR5-6400 interface defines the maximum data rate this kit can deliver; the board's memory controller and population rules determine the actual operating frequency when all slots are filled. Registered architecture offloads the controller so every slot can run populated, but the final speed depends on the platform's qualified-vendor list.

Replaces slower or smaller DDR5 RDIMMs

The jump is worth it when the server needs the full 256GB capacity at the board's top qualified DDR5 speed with ECC protection. Systems that require UDIMMs, SODIMMs, non-ECC modules, or lower-density DIMMs cannot use this kit.

How it compares

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

Price $8,940.99
Pricier than about 86% 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 $34.93 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

Other versions of this model

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Questions about this item

Should I choose the 256GB kit or a smaller capacity for my Supermicro H14SSL-N?

The kit provides 256GB across eight 32GB modules, fully populating the board for maximum registered ECC capacity at DDR5-6400.

What does the DDR5-6400 rating deliver once installed in the server?

The modules run at 6400 MT/s with CL52 latency at 1.1V, giving the memory controller its rated bandwidth of PC5-51200.

How does the 288-pin RDIMM interface and registered design affect real-world limits?

Registered buffering lets all eight slots operate at full 32GB density, while ECC corrects single-bit errors on the fly.

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