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Green circuit board with black memory chips and gold edge connector

NEMIX RAM

NEMIX RAM 128GB DDR5 6400 CL52 4Rx4 1.1V ECC RDIMM Supermicro X14SDV-32C-SP3F memory upgrade

SKU CH-AZ3V-HMW5R

A 128GB DDR5 6400 CL52 4Rx4 1.1V ECC registered RDIMM built to the exact rank, voltage and timing the Supermicro X14SDV-32C-SP3F memory controller expects for full-capacity operation

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

Size 128GB

  • Exact-match 128 GB DDR5-6400 CL52 4Rx4 ECC RDIMM for Supermicro X14SDV-32C-SP3F
  • Registered architecture offloads the memory controller for full-capacity stability
  • ECC corrects single-bit errors on the fly preventing silent data corruption
  • 1 V operating voltage meets the board's DDR5 power specification
  • 288-pin RDIMM form factor matches the motherboard's required slot type

128GB DDR5-6400 ECC RDIMM for Supermicro X14SDV

This NEMIX RAM module is a 128GB DDR5-6400 (PC5-51200) registered ECC RDIMM built to the exact rank, voltage and timing the Supermicro X14SDV-32C-SP3F memory controller expects. It installs as a 288-pin DIMM running at 1.1V with CL52 latency and 4Rx4 organization. The part is new and uses major OEM DRAM chips.

Suits the X14SDV-32C-SP3F; not for other boards

This kit suits administrators upgrading a Supermicro X14SDV-32C-SP3F motherboard that requires registered ECC DDR5 RDIMMs at the specified speed and rank. Builders using consumer motherboards, workstations needing UDIMMs, or servers with different population rules should look at other memory. The module will not function in systems that do not support registered ECC DDR5.

4Rx4 rank and 1.1V decide compatibility

The single specification that decides fitment is the 4Rx4 registered ECC organization combined with 1.1V operation at DDR5-6400 CL52. The X14SDV-32C-SP3F memory controller only recognises modules with this exact rank structure and voltage; a different rank count or voltage prevents the system from booting at full capacity. Always verify the motherboard manual for approved population order before purchase.

How it compares

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

Price $4,676.99
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 $36.54 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

Which motherboard must I already have to install this 128GB DDR5 6400 CL52 4Rx4 RDIMM kit?

The kit is validated for the Supermicro X14SDV-32C-SP3F motherboard running DDR5 6400 PC5-51200 memory.

Will this 288-pin registered ECC DDR5 module work in older Supermicro boards that only accept unbuffered UDIMMs?

No, registered RDIMMs require a motherboard designed for registered memory; UDIMM-only systems will not recognise them.

How can I confirm the kit is running at its rated 6400 MT/s CL52 after installation?

Check BIOS or a tool like dmidecode to verify the module reports DDR5-6400, PC5-51200, and CL52 timings.

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