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Two green DDR5 RDIMM modules with gold contacts and black chips no heat spreader

NEMIX RAM

NEMIX RAM 256GB (2 x 128GB) DDR5 6400 CL52 ECC RDIMM Supermicro H14DST-FL memory upgrade

SKU CH-2JAZ-7GR25

A 256 GB DDR5 registered ECC kit built for the Supermicro H14DST-FL motherboard, running at 6400 MT/s with CL52 latency and 1.1 V

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Exact-match 256 GB kit runs at rated DDR5-6400 CL52
  • Verified fit for Supermicro H14DST-FL with 288-pin RDIMM form factor
  • Registered ECC design corrects single-bit errors and supports full-capacity population
  • 2Rx4 1.1 V modules use major OEM chips for enterprise stability
  • Lifetime replacement warranty with free US-based technical support

Exact-match DDR5-6400 ECC RDIMM kit

This 256 GB kit contains two 128 GB registered DDR5 modules built to the Supermicro H14DST-FL memory-controller specification. It targets administrators who need the full rated speed and capacity their server board expects without manual tuning.

Registered ECC architecture and 1.1 V operation

Registered buffering offloads the memory controller so every slot runs fully populated at DDR5-6400, while on-die ECC corrects single-bit errors before they reach production workloads. The 1.1 V rating matches the board's default voltage profile for stable operation.

Verify DIMM population rules and capacity limits

Consult the motherboard manual for approved population order, maximum supported capacity per channel, and installation steps before ordering. Compatibility varies by BIOS revision and exact system configuration.

How it compares

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

Price $8,419.99
Pricier than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $32.89 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 numberMR51200-724K2
Total capacity256 GB (2 × 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 items256 GB 2 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will the registered ECC RDIMM modules need any firmware updates or periodic reseating after installation?

No firmware updates or scheduled reseating are required; the registered ECC design is validated for continuous operation in the Supermicro H14DST-FL platform.

What limits sustained throughput when the kit runs at DDR5 6400 CL52 under full load?

The CL52 CAS latency at 6400 MT/s sets the primary timing boundary for sustained bandwidth.

How much heat and power does the 256 GB kit produce when the server runs all day?

Each 128 GB module operates at 1.10 V with no heat spreader, so thermal output stays within standard RDIMM limits for the platform.

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