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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 1TB (8×128GB) DDR5-6400 CL52 2Rx4 1.1V ECC RDIMM Supermicro H14SSF

SKU CH-3NGD-1BHDJ

Eight 128 GB DDR5-6400 ECC registered RDIMMs deliver 1 TB at 1.1 V CL52 for Supermicro H14SSF servers

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 1TB capacity with eight 128GB modules for maximum server density
  • DDR5-6400 CL52 at 1.1V matches the memory controller's exact timing
  • Registered ECC RDIMM corrects single-bit errors and stabilises full-slot operation
  • 2Rx4 dual-rank organisation enables full 1TB population on the H14SSF
  • 288-pin RDIMM form factor fits the Supermicro H14SSF motherboard slots

Supermicro H14SSF 1TB DDR5-6400 RDIMM kit

This 1TB kit contains eight 128GB DDR5-6400 Registered ECC RDIMMs built for the Supermicro H14SSF motherboard. Modules run at 1.1V with CL52 latency and a 2Rx4 rank structure that matches the board's memory controller requirements. The 288-pin form factor ensures physical and electrical compatibility with the server platform.

Suited for full-population server upgrades.

IT teams populating every DIMM slot on a Supermicro H14SSF will get registered buffering and ECC protection at the rated 6400 MT/s speed. Builders using desktop motherboards, workstations that require unbuffered UDIMMs, or systems limited to lower capacities should look elsewhere because this kit needs registered ECC support and the specific population rules of the target board.

Registered ECC 2Rx4 architecture decides fit

The 2Rx4 registered ECC design offloads the memory controller and corrects single-bit errors, which is mandatory for stable operation when all slots are filled on the H14SSF. If the platform requires unbuffered memory, single-rank modules, or a different voltage, this kit will not function.

How it compares

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

Price $32,313.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $32.31 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-724K8
Total capacity1 TB (8 × 128 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 items1 TB 8 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Do I need a Supermicro H14SSF motherboard with 288-pin DDR5 RDIMM slots for this 1TB kit to work?

Yes, the 8×128GB DDR5-6400 CL52 2Rx4 1.1V ECC RDIMM kit is built for the H14SSF's 288-pin registered DIMM slots and its memory-controller voltage and timing requirements.

Will the registered ECC design and 2Rx4 organisation run reliably in all eight slots of my H14SSF at the rated 6400 MT/s?

The registered architecture buffers the control lines so the memory controller can drive a fully populated eight-DIMM configuration at DDR5-6400 without signal degradation, while ECC corrects single-bit errors on the fly.

How can I verify the kit is operating at DDR5-6400 CL52 1.1V after installation?

Enter the H14SSF BIOS or use a tool such as dmidecode to confirm each DIMM reports 6400 MT/s, CAS latency 52, 1.1 V and ECC registered status with no errors logged.

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