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Four green DDR5 RDIMM modules with black chips no heat spreader

NEMIX RAM

NEMIX RAM DDR5 6400 ECC RDIMM 128GB 4x32GB CL52 1.1V 2Rx4 Supermicro X14SDW-72C-SP9F memory upgrade

SKU CH-ABHF-HCBZE

128 GB DDR5-6400 ECC registered RDIMM kit (4 × 32 GB, CL52, 1.1 V, 2Rx4) validated for the Supermicro X14SDW-72C-SP9F motherboard

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 4X32GB

Show 4 more
  • 128 GB total capacity in a 4 × 32 GB kit
  • DDR5-6400 speed with CL52 latency at 1.1 V
  • Registered ECC RDIMM architecture prevents silent data corruption
  • 2Rx4 dual-rank organisation for full-population stability
  • Validated for Supermicro X14SDW-72C-SP9F motherboard

Exact-match DDR5 upgrade for Supermicro

This 128GB kit delivers four 32GB DDR5 6400 Registered ECC RDIMMs built to the precise rank, voltage, and timing your server's memory controller expects. It is intended for administrators who need to fully populate the board with validated modules that run at rated speed without manual tuning.

Straightforward 288-pin RDIMM installation

The modules are keyed for the 288-pin Registered DIMM slots on the Supermicro X14SDW-72C-SP9F, so they seat in one direction only. Common issues arise when population order in the manual is ignored or when mixed-rank DIMMs prevent the controller from initialising all slots at 6400 MT/s.

Verify board revision

Confirm your exact motherboard model matches the X14SDW-72C-SP9F and check the manual for approved DIMM configurations, maximum capacity per channel, and required slot-filling sequence. Systems with a different revision or firmware may not recognise the full 128GB at the rated CL52 1.1V profile.

How it compares

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

Price $4,704.99
Pricier than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $36.76 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 numberMR51200-324K4
Total capacity128 GB (4 × 32 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 items128 GB 4 × 32 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How can I verify the kit is running at DDR5 6400 CL52 after installation?

Enter the BIOS or use a tool such as dmidecode to confirm each module reports 6400 MT/s, CL52 latency, 1.10 V and 2Rx4 registered ECC operation.

What ships in the box and is anything else required?

The kit contains four 32 GB DDR5 288-pin RDIMMs for a total of 128 GB; no extra cables, brackets or heat spreaders are included or needed.

Which capacity version should I choose for the Supermicro X14SDW-72C-SP9F?

This 128 GB (4 x 32 GB) kit matches the board's DDR5 6400 registered ECC 2Rx4 1.1 V specification; select it when you need the full four-module population.

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