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Twelve green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 1.5TB (12x128GB) DDR5 4800 ECC RDIMM THINKMATE GPX-XH20-28S4-8HGX memory upgrade

SKU CH-3ET3-ZD07C

A 1.5 TB DDR5-4800 ECC registered memory kit with twelve 128 GB modules for ThinkMate GPX-XH20-28S4-8HGX servers

  • Total capacity1.5 TB (12 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 5 TB total capacity from 12 modules of 128 GB each
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design detects and corrects data errors
  • 1 V operating voltage reduces power draw per module
  • 288-pin RDIMM form factor fits compatible ThinkMate server slots

1.5TB DDR5 4800 ECC RDIMM kit

This 12-module kit delivers 1.5TB of DDR5 4800 registered ECC memory for THINKMATE GPX-XH20-28S4-8HGX GPU-optimized servers. It targets IT teams scaling memory capacity for dense virtualization, AI training or HPC workloads on qualified platforms.

Registered 4Rx4 modules at 1.1V

Each 128GB module uses a 4Rx4 organisation with CL40 latency and runs at 1.1V without a heat spreader. The 288-pin RDIMM form factor fits the server’s registered DIMM slots, and the registered buffer reduces electrical load on the memory controller for stable operation across all twelve slots.

Upgrades from smaller DDR5 RDIMM configurations

Replacing lower-capacity DDR5 RDIMM kits with this 12 x 128GB set maximises the system’s supported memory ceiling in a single step. The jump is worth it when workloads exceed the capacity of partially populated servers and the platform’s qualified memory list includes this 1.5TB configuration.

How it compares

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

Price $43,214.99
Pricier than about 95% of the 21,161 comparable items (median $397.99).
Total capacity 1.5 TB (12 × 128 GB)
Higher than about 97% of the 20,941 comparable items (median 32 GB).
Price per GB $28.81 per GB
Pricier than about 81% 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 numberMR38400-744K12
Total capacity1.5 TB (12 × 128 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 items1.5 TB (12 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What DDR5 speed and PC5 rating do these 128GB modules use?

Each module is rated DDR5 4800 and PC5-38400, matching the server memory controller specification.

What physical slot and form factor are required for the 12 DIMMs in this kit?

The kit uses 288-pin DDR5 RDIMM modules that install in standard DDR5 RDIMM server slots.

In what order should the 12 modules be populated across the CPU sockets?

Follow the ThinkMate GPX-XH20-28S4-8HGX manual for the exact slot sequence; the common error is skipping a required slot or mixing ranks within a channel.

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