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Four green DDR5 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 64GB 4x16GB ECC RDIMM 6400 CL52 1.1V 288-pin Supermicro H13SST-GC memory upgrade

SKU CH-4RFB-1SHCY

64 GB (4 × 16 GB) DDR5-6400 ECC Registered RDIMM kit at 1.1 V, CL52, validated for Supermicro H13SST-GC motherboards

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 64 GB capacity from four 16 GB modules for full server population
  • DDR5 6400 speed with CL52 latency runs at rated frequency
  • Registered ECC design corrects single-bit errors and buffers the controller
  • 1 V operation matches the motherboard's memory-controller specification
  • Validated fitment for Supermicro H13SST-GC motherboard with 288-pin RDIMM slots

Exact-match DDR5-6400 upgrade for Supermicro

This 64 GB kit contains four 16 GB DDR5-6400 registered ECC RDIMMs built to the precise 1Rx8 rank, 1.10 V voltage and CL52 timing the motherboard expects. The modules are recognised at full capacity and run at their rated 6400 MT/s speed without manual tuning. Designed for administrators who need guaranteed compatibility on this specific platform.

Registered ECC architecture with lifetime support

Registered buffering offloads the memory controller so all four slots operate stably at full population, while on-die ECC corrects single-bit errors before they reach applications. The kit ships as a matched set with a lifetime replacement warranty and US-based technical support, removing the risk of mixed-rank instability.

64 GB headroom for virtualisation and databases

Four populated slots deliver 64 GB of addressable memory, sufficient for moderate virtual-machine densities, in-memory databases and container workloads. Workloads that require more than 64 GB or higher memory bandwidth will exceed this kit's capacity and need a platform with additional DIMM slots or faster memory speeds.

How it compares

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

Price $2,005.99
Pricier than about 68% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $31.34 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 numberMR51200-618K4
Total capacity64 GB (4 × 16 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 rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB 4 × 16 GB DDR5 6400 MHz PC5-51200 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will the 288-pin RDIMM modules need any periodic replacement or firmware updates?

The modules are solid-state with no moving parts and require no scheduled replacement or firmware updates under normal server operation.

What limit appears first when the kit runs at 6400 MT/s continuously in a fully populated Supermicro H13SST-GC?

The memory controller's maximum supported speed and the board's population rules set the practical ceiling; the kit is specified at CL52 and 1.10 V for that platform.

How much heat and power does the 64 GB kit draw during all-day operation?

Each 16 GB RDIMM operates at 1.10 V without a heat spreader, so total power draw and thermal output stay within standard DDR5 registered DIMM limits for the platform.

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