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Four green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 6400 128GB (4x32GB) CL52 1.1V ECC RDIMM Supermicro H13SST-G memory upgrade

SKU CH-RBRV-H8G68

A 128 GB DDR5 registered ECC memory kit with four 32 GB modules running at 6400 MT/s and CL52 latency for the Supermicro H13SST-G motherboard

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128 GB total capacity with four matched 32 GB modules
  • DDR5 6400 speed rated at CL52 latency for rated throughput
  • Registered ECC design corrects single-bit errors and buffers every slot
  • 1 V operation matches the Supermicro H13SST-G memory controller spec
  • 288-pin RDIMM form factor fits the exact DIMM sockets on this motherboard

Exact-match DDR5 upgrade kit for Supermicro H13SST-G

This 128 GB kit delivers four 32 GB DDR5-6400 RDIMMs built to the exact rank, voltage and timing your server's memory controller expects. Registered ECC architecture with CL52 latency and 1.1 V operation ensures full-capacity recognition at rated speed. Designed for administrators who need reliable, high-density memory in supported Supermicro platforms.

Registered ECC DDR5 limits and population rules

The 288-pin RDIMM form factor is mandatory; UDIMM or SODIMM modules will not fit or function. Registered buffering offloads the memory controller so every slot can run fully populated, while on-die ECC corrects single-bit errors before they reach production workloads. Maximum capacity and supported population order are defined solely by the motherboard specification.

Verify your board manual before ordering

Confirm the H13SST-G manual for approved DIMM population sequences, maximum supported capacity per channel and any BIOS version requirements. Ensure the server chassis provides adequate airflow for fully populated memory banks. This kit is not suitable for systems requiring UDIMM, SODIMM or non-ECC memory.

How it compares

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

Price $4,970.99
Pricier than about 80% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $38.84 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 numberMR51200-328K4
Total capacity128 GB (4 × 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 items128 GB 4 × 32 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Should I choose the 4 x 32 GB kit or a different capacity for my Supermicro H13SST-G?

The 128 GB kit provides four 32 GB modules that fill the board's four slots and match its population rules, giving full rated speed and capacity.

What does the DDR5-6400 rating mean when the kit is installed in this server?

The memory controller will run the modules at 6400 MT/s with CL52 latency at 1.1 V, delivering the rated bandwidth without manual tuning.

Is the 288-pin RDIMM interface compatible with the H13SST-G and what does it limit?

Yes, the 288-pin registered DIMM form factor is exactly what the H13SST-G requires; it enables full-slot population at rated speed while ECC corrects single-bit errors.

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