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

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 ECC RDIMM 4Rx4 CL40 1.1V ThinkMate GPX-XH20-28S4-8HGX memory upgrade

SKU CH-T6D1-KQ3JJ

128 GB DDR5 4800 ECC registered RDIMM with CL40 latency and 1.1 V operation

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128GB single module expands server capacity
  • DDR5 4800 speed handles heavy workloads
  • ECC registered design protects data integrity
  • 1V operation reduces power draw
  • Validated for ThinkMate GPX-XH20-28S4-8HGX systems

128GB DDR5 4800 ECC RDIMM for ThinkMate

This registered DDR5 module delivers 128GB of error-correcting memory at 4800 MT/s. It targets administrators upgrading ThinkMate GPX-XH20-28S4-8HGX GPU-optimised servers. The 4Rx4 organisation and CL40 latency suit high-density configurations.

Sustained load behaviour

Registered buffering and on-die ECC maintain data integrity during continuous compute or AI workloads. The 1.1V operating voltage helps limit thermal output when all ranks are active. Modules are stress-tested under load before shipping.

Installation notes

The 288-pin DDR5 RDIMM fits keyed server DIMM slots; alignment notch prevents reverse insertion. Population rules depend on the server's memory-controller topology, so consult the platform manual. No heat spreader is present, so airflow across the PCB must be adequate.

How it compares

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

Price $3,522.99
Pricier than about 75% 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 $27.52 per GB
Pricier than about 77% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineTHINKMATE Server/Workstation Compatible Series Memory
Model nameTHINKMATE DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-744K1
Total capacity128 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items128 GB (1 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How much power does this 1.1V DDR5 4800 ECC RDIMM draw when the server runs continuously?

The module operates at 1.10V; DDR5 RDIMM power draw varies with workload and motherboard voltage regulation, so sustained consumption depends on your platform's memory controller and BIOS settings.

What motherboard slot and chipset support are required to install this 288-pin 4Rx4 registered DIMM?

It needs a DDR5 RDIMM slot with registered ECC support; the ThinkMate GPX-XH20-28S4-8HGX platform is validated, and other boards must explicitly list DDR5 4800 4Rx4 RDIMM compatibility.

Can I mix this 128GB 4Rx4 CL40 module with smaller DDR5 ECC RDIMMs already in my ThinkMate server?

Mixing ranks and capacities is platform-dependent; the GPX-XH20-28S4-8HGX memory population rules dictate which slots accept 4Rx4 modules alongside 1Rx4 or 2Rx4 DIMMs, so consult the system manual before adding.

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