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Four green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM DDR5 6400 256GB 4x64GB CL52 1.1V 4Rx4 ECC RDIMM Supermicro X14QBH+ memory upgrade

SKU CH-FCDR-X2C4D

A 256GB kit of four 64GB DDR5 6400 ECC registered DIMMs built for the Supermicro X14QBH+ motherboard

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

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  • 256 GB kit fills four slots at full rated speed
  • DDR5-6400 CL52 timing matches the memory controller exactly
  • Registered ECC architecture corrects single-bit errors on the fly
  • 1 V operation keeps power draw low per module
  • 288-pin RDIMM form factor fits the Supermicro X14QBH+ board

256GB DDR5-6400 ECC RDIMM kit

This 256GB kit contains four 64GB DDR5-6400 (PC5-51200) registered ECC RDIMMs built for the Supermicro X14QBH+ motherboard. It delivers the exact 4Rx4 rank structure, 1.10V operating voltage and CL52 latency the platform expects for full-capacity recognition at rated speed.

Sustained-load behaviour

Registered buffering reduces electrical load on the memory controller so all four slots remain stable when fully populated under continuous server workloads. On-die ECC detects and corrects single-bit errors in real time, preventing silent data corruption during long-running compute or database tasks.

Pre-installation checklist

Verify the motherboard manual for approved DIMM population order, maximum supported capacity per slot and any BIOS version requirements before ordering. Confirm the system accepts 288-pin DDR5 RDIMMs with 4Rx4 organisation and 1.10V operation, as UDIMM or SODIMM modules will not fit or function.

How it compares

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

Price $9,197.99
Pricier than about 86% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $35.93 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 numberMR51200-944K4
Total capacity256 GB (4 × 64 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 4 × 64 GB DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

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