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Green circuit board with black memory chips, no heat spreader, 288-pin DDR5 RDIMM

NEMIX RAM

NEMIX RAM 128GB DDR5 6400 4Rx4 CL52 1.1V ECC RDIMM Supermicro X14SDW-64CM-SP9F memory upgrade

SKU CH-JA2M-53K6F

128GB DDR5 6400 ECC registered RDIMM built for the Supermicro X14SDW-64CM-SP9F motherboard

  • Total capacity128 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB

Show 4 more
  • 128 GB capacity fits the Supermicro X14SDW-64CM-SP9F motherboard
  • DDR5 6400 speed matches the board's rated memory frequency
  • 4Rx4 registered ECC design enables full-slot population with error correction
  • 1 V operation meets the platform's voltage specification
  • 288-pin RDIMM form factor installs directly into the server's DIMM slots

128 GB DDR5-6400 RDIMM for Supermicro X14SDW

This 128 GB DDR5-6400 registered ECC module is built for the Supermicro X14SDW-64CM-SP9F motherboard. It delivers the exact rank, voltage and timing the server memory controller expects so the full capacity is recognised and runs at its rated speed.

Verified fitment and registered ECC stability

The 288-pin RDIMM form factor matches the board's requirements and is spec-matched to its population rules. Registered architecture offloads the memory controller for full-slot operation while ECC corrects single-bit errors on the fly to prevent silent data corruption and unplanned reboots.

Capacity headroom and configuration limits

The single 128 GB module provides substantial memory capacity for virtualisation and data-intensive workloads. Buyers who need more total memory must verify the board's maximum supported capacity and approved DIMM population order in the system manual before adding further modules.

How it compares

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

Price $4,741.99
Pricier than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $37.05 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 numberMR51200-744K1
Total capacity128 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 items128 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 DDR5 RDIMM require any firmware updates or specific slot population rules on the Supermicro X14SDW-64CM-SP9F?

The module is an exact-match upgrade spec-matched to the board's memory-population rules; consult the motherboard manual for supported capacities and approved DIMM installation order before fitting.

What thermal or stability limit appears first when this 1.10V CL52 registered ECC memory runs at DDR5 6400 continuously?

Registered architecture offloads the memory controller so every slot runs fully populated at rated speed, while ECC corrects single-bit errors on the fly to prevent silent data corruption.

Does the RDIMM generate noticeable noise or heat during all-day operation in the Supermicro X14SDW-64CM-SP9F?

The module has no heat spreader and operates at the standard 1.1V DDR5 voltage; registered buffering reduces electrical load on the controller for stable sustained throughput.

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