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Green rectangular DDR5 RDIMM module with black chips, gold contacts, no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 6400 CL52 2Rx4 1.1V ECC RDIMM memory upgrade

SKU CH-8YVS-XX5AZ

128 GB DDR5 6400 RDIMM with ECC and registered buffering for Supermicro H14DST-FL servers

  • Total capacity128 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128GB capacity matches server memory controller expectations
  • DDR5 6400 speed with CL52 timing runs at rated performance
  • 1V registered ECC design corrects single-bit errors automatically
  • 2Rx4 288-pin RDIMM form factor fits Supermicro H14DST-FL motherboard
  • Lifetime replacement warranty with US-based technical support included

Server DDR5 RDIMM upgrade

This 128GB DDR5 6400 registered ECC module is built for the Supermicro H14DST-FL motherboard. It delivers the exact rank, voltage, and timing the platform expects so the server recognises the full capacity at rated speed.

Enterprise stability fit

Suits administrators who need registered ECC memory that offloads the controller and corrects single-bit errors in fully populated configurations. Not for builders who need unbuffered UDIMM or SODIMM form factors, non-ECC modules, or a different DDR generation.

128GB 2Rx4 DDR5 6400 CL52

The single spec that decides fit is the 128GB 2Rx4 DDR5 6400 CL52 1.1V registered ECC RDIMM configuration. Your motherboard manual must confirm this exact rank, voltage, timing, and population rule before purchase.

How it compares

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

Price $4,263.99
Pricier than about 77% 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 $33.31 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 numberMR51200-724K1
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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How do I verify the module runs at 6400 MHz with CL52 after installing it in my Supermicro H14DST-FL?

Enter the BIOS and confirm the reported speed shows 6400 MT/s and the CAS latency reads 52. The registered ECC design lets the board train at the rated 1.10 V without manual tuning.

Does the kit include more than the single 128 GB 288-pin RDIMM, or do I need extra parts?

The package contains only the 128 GB DDR5 6400 CL52 2Rx4 registered ECC RDIMM. No heat spreader, cables, or additional modules are supplied.

Why choose the 128 GB 2Rx4 CL52 version instead of a lower-capacity or different-rank module?

This exact 128 GB 2Rx4 CL52 1.10 V registered ECC RDIMM matches the Supermicro H14DST-FL memory-population rules for full-capacity, full-speed operation in every slot.

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