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Six green DDR5 RDIMM modules without heat spreaders in a clear plastic tray

NEMIX RAM

NEMIX RAM 384GB (6×64GB) DDR5 6400 CL52 1.1V 2Rx4 ECC Registered RDIMM memory upgrade for Supermicro H14SSF

SKU CH-X3DX-3YDGN

384 GB DDR5 server memory kit with six 64 GB registered ECC RDIMMs running at 6400 MT/s, CL52, 1.1 V, 2Rx4, validated for the Supermicro H14SSF motherboard

  • Total capacity384 GB (6 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 384 GB total capacity from six 64 GB modules
  • DDR5-6400 (PC5-51200) speed with CL52 latency
  • 1 V registered ECC RDIMM for enterprise stability
  • 2Rx4 288-pin form factor matches Supermicro H14SSF requirements
  • Major OEM chips (Samsung, Micron, Hynix) ensure consistent quality

NEMIX RAM 384GB DDR5-6400 ECC RDIMM kit

This 384GB kit contains six 64GB DDR5-6400 registered ECC RDIMMs built for the Supermicro H14SSF motherboard. It delivers 2Rx4 organisation at 1.10V with CL52 timing so the memory controller recognises every module at full rated speed. The registered architecture offloads the controller to keep all slots stable when fully populated. On-board ECC corrects single-bit errors before they reach production workloads.

Verify Supermicro H14SSF DIMM population rules

Consult the motherboard manual for supported capacities, approved population order and installation steps before ordering. The board requires 288-pin registered RDIMMs — not UDIMMs or SODIMMs — and population rules differ by CPU configuration. Confirm that your BIOS revision supports 64GB dual-rank modules in all six slots. Server memory validation varies by model so manual verification prevents mismatched kits.

Registered ECC build with major OEM chips

Modules use Samsung, Micron or Hynix components without heat spreaders for dense server chassis airflow. The 288-pin RDIMM form factor locks securely into the H14SSF slots and the registered buffer reduces electrical load on the memory controller. ECC circuitry catches and corrects single-bit errors on the fly to stop silent data corruption and unplanned reboots. Lifetime replacement warranty and US-based technical support back the kit.

How it compares

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

Price $12,858.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (6 × 64 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $33.49 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 numberMR51200-924K6
Total capacity384 GB (6 × 64 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 items384 GB 6 × 64 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What comes in the 384 GB kit and do I need to buy any extra modules?

The kit contains six 64 GB DDR5 6400 CL52 2Rx4 registered ECC RDIMMs, giving 384 GB total; no additional modules are required for a full installation.

Why choose this 6400 CL52 2Rx4 kit instead of another speed or rank?

The Supermicro H14SSF memory controller expects DDR5 6400 at 1.1 V with CL52 timing and 2Rx4 registered DIMMs; this exact specification ensures full-capacity recognition and rated-speed operation.

What does the 6400 MT/s rating mean once the DIMMs are installed in the H14SSF?

The modules will run at 6400 MT/s (PC5-51200) with CL52 latency at 1.1 V, delivering the bandwidth and error-correcting stability the server's registered memory architecture is designed for.

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