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Green printed circuit board with gold contacts and black memory chips, 288 pins, no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 6400MHz PC5-51200 4Rx4 1.1V CL52 288-PIN ECC Registered RDIMM memory upgrade

SKU CH-368D-KWTRV

A 128 GB DDR5 registered ECC RDIMM running at 6400 MHz with CL52 latency and 1.1 V for Supermicro X14QBH+ motherboards

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

Size 128GB

Show 8 more
  • 128 GB capacity lets fully populated servers run heavy workloads without swapping
  • Registered ECC design corrects single-bit errors on the fly to prevent silent data corruption
  • 6400 MHz speed at CL52 delivers rated throughput for Supermicro X14QBH+ memory controllers
  • 1 V operation matches the board's DDR5 voltage spec for stable full-slot population
  • 288-pin RDIMM form factor fits the exact slot type required by the target motherboard

Server Memory Upgrade

This 128GB DDR5 RDIMM is built for administrators expanding capacity on the Supermicro X14QBH+ motherboard. Registered architecture and ECC support let every slot run fully populated while correcting single-bit errors before they affect production workloads.

Registered ECC with 4Rx4 Organization

The module uses a 4Rx4 rank structure and registered buffering at 1.10V so the memory controller sees the exact electrical load it expects. This precise match ensures the system recognizes the full 128GB capacity and operates at the rated DDR5 6400 speed without manual tuning.

Low-Voltage Operation Without Heat Spreader

Running at 1.10V keeps power draw modest for dense server configurations. The bare-module design relies on chassis airflow rather than an integrated spreader, so adequate case ventilation is required to maintain stable thermals under sustained load.

How it compares

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

Price $4,525.99
Pricier than about 78% 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 $35.36 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

What does the DDR5 6400 speed rating mean once the module is installed in a server?

The module runs at 6400 MT/s with CL52 latency at 1.10 V, delivering the exact data rate and timing the memory controller expects for full-capacity operation.

What does the PC5-51200 designation tell me about the DDR5 interface and its practical limit?

PC5-51200 is the JEDEC bandwidth label for DDR5 6400; the module operates at that rated speed when the platform's memory controller supports DDR5 6400.

What physical slot and clearance does this 128 GB RDIMM need to fit in a Supermicro X14QBH+?

It requires a standard 288-pin DDR5 RDIMM slot; the module has no heat spreader, so it fits in tight server DIMM rows without extra height clearance.

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