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Four green 288-pin DDR5 RDIMM modules in a clear tray

NEMIX RAM

NEMIX RAM 512GB (4×128GB) DDR5 6400 CL52 1.1V ECC Registered RDIMM Supermicro H14SSF memory upgrade

SKU CH-G8K8-Z579D

A 512 GB registered ECC DDR5 kit with four 128 GB modules at 6400 MT/s, CL52 and 1.1 V, validated for Supermicro H14SSF servers

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 512 GB total capacity across four 128 GB modules
  • DDR5-6400 speed with CL52 latency at 1.1 V
  • Registered ECC RDIMM architecture for full-slot stability
  • 288-pin 2Rx4 form factor matched to Supermicro H14SSF
  • Lifetime replacement warranty with US-based technical support

Capacity and Fit

This 512GB kit contains four 128GB DDR5 6400 RDIMM modules rated CL52 at 1.1V. It is built for the Supermicro H14SSF motherboard and delivers registered ECC memory for servers that require full-capacity stability.

Pre-Installation Check

Confirm the H14SSF manual for supported capacities, DIMM population order and installation steps before ordering. Registered RDIMM modules will not work in UDIMM or SODIMM slots, so the board must specify this exact form factor.

Build and Daily Use

Registered architecture offloads the memory controller to keep every slot running fully populated, while ECC corrects single-bit errors on the fly. The 288-pin DDR5 connectors match the motherboard slots directly, and the modules carry a lifetime replacement warranty with US-based support.

How it compares

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

Price $18,186.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $35.52 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 numberMR51200-724K4
Total capacity512 GB (4 × 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 items512 GB 4 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What comes in the 512GB kit and is anything else needed for the Supermicro H14SSF?

The kit contains four 128GB DDR5 6400 CL52 1.1V ECC Registered RDIMMs. No extra parts are required; the modules match the board's 288-pin RDIMM slots and memory-population rules.

Should I choose this 4×128GB kit or a different capacity for the H14SSF?

Select this 512GB (4×128GB) kit when your workload needs the maximum supported capacity across four channels. Choose a smaller kit only if your application fits in less memory and you want to leave slots open for later expansion.

What does the DDR5 6400 CL52 rating deliver once installed in the server?

The modules run at 6400 MT/s with CL52 latency at 1.1V, giving the memory controller the exact speed, timing and voltage it expects for full-capacity operation with ECC error correction active.

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