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Two green DDR5 RDIMM modules, 288-pin, no heat spreader

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5-6400 CL52 4Rx4 ECC RDIMM memory upgrade

SKU CH-GN5V-MV1SP

A 256 GB DDR5 registered ECC memory kit with two 128 GB modules running at 6400 MHz CL52 for Supermicro X14QBH+ motherboards

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 2X128GB

Show 8 more
  • 256 GB total capacity from two 128 GB modules for dense server memory
  • DDR5-6400 speed with CL52 latency delivers rated throughput for Supermicro X14QBH+
  • Registered ECC design corrects single-bit errors and stabilises fully populated slots
  • 10 V operation at 4Rx4 rank matches the motherboard's memory-controller requirements
  • 288-pin RDIMM form factor fits the exact slot type the board expects

Server-grade memory kit

This 256GB kit contains two 128GB DDR5-6400 registered ECC RDIMMs built for Supermicro X14QBH+ motherboards. The modules run at 1.10V with CL52 latency and a 4Rx4 organization that matches the board's memory controller requirements.

Registered ECC architecture

Registered buffering reduces electrical load on the memory controller so all slots can be fully populated at rated speed. On-die ECC detects and corrects single-bit errors automatically, preventing silent data corruption in production workloads.

Pre-installation checks

Verify the motherboard manual for supported capacities, approved DIMM population order and any BIOS updates required before installation. Confirm the system accepts 288-pin registered RDIMMs rather than unbuffered or SO-DIMM form factors.

How it compares

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

Price $8,416.99
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 $32.88 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 numberMR51200-744K2
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 rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 2 × 128 GB DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Will the 4Rx4 registered ECC modules need any firmware updates or periodic replacement?

The kit uses 4Rx4 registered ECC DDR5 RDIMMs at 1.10 V; registered modules offload the controller and ECC corrects single-bit errors, so no firmware updates or scheduled replacement are required.

What limit appears first when the 256 GB kit runs continuously at DDR5-6400 CL52?

Sustained operation at 6400 MT/s with CL52 is bounded by the memory controller's maximum supported rank population and thermal envelope; the 4Rx4 organisation fills each slot at full capacity within those limits.

How much heat and power should I expect from the two 128 GB sticks at 1.1 V all day?

Each module runs at 1.10 V without a heat spreader; registered buffering reduces controller load, so power draw stays at the rated voltage and heat output remains within standard DDR5 RDIMM limits for a fully populated server chassis.

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