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Six bare green DDR5 RDIMM sticks in anti-static tray

NEMIX RAM

NEMIX RAM 768GB (6x128GB) DDR5 4800 CL40 4Rx4 ECC RDIMM memory upgrade

SKU CH-GXX3-F704B

A 768 GB DDR5 server memory kit of six 128 GB registered ECC RDIMMs running at 4800 MT/s with CL40 latency

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 768 GB total capacity from six 128 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth rating
  • ECC registered design detects and corrects data errors
  • 4Rx4 organisation maximises density per DIMM slot
  • 1 V operation matches DDR5 standard voltage

Capacity and purpose

This kit provides 768 GB of DDR5 memory across six 128 GB registered DIMMs. It is built for Thinkmate GPX servers that require high-density ECC RDIMM modules for large-scale compute or GPU-accelerated workloads.

Sustained-load behaviour

Registered buffering and on-die ECC keep data integrity intact during continuous operation at 4800 MT/s. The 1.1 V operating voltage and 4Rx4 organisation are qualified for the thermal and electrical envelope of the target server platforms.

Deciding specification

The 4Rx4 rank architecture and CL40 latency at DDR5 4800 determine whether the memory controller can populate all slots at rated speed. Verify the platform documentation for supported rank-per-channel limits before ordering.

How it compares

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

Price $23,114.99
Pricier than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (6 × 128 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $30.10 per GB
Pricier than about 86% 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 numberMR38400-744K6
Total capacity768 GB (6 × 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 items768 GB (6 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How much heat and power will six 128 GB DDR5 4800 CL40 registered DIMMs add when the server runs 24/7?

Each module runs at 1.10 V with no heat spreader; total kit capacity is 768 GB, so sustained load will draw modest power and rely on chassis airflow for cooling.

What server platform must I already own for this 6 x 128 GB kit to be recognised and initialised?

The kit is validated for ThinkMate GPX-QH24-24E4-8GPU and GPX-QH14-28E4-8HGX GPU-optimised servers that accept 288-pin DDR5 RDIMMs.

Can I mix these 4Rx4 DDR5 4800 CL40 registered DIMMs with other DDR5 RDIMMs already installed in the ThinkMate server?

Yes, provided the existing modules are also DDR5 RDIMMs supported by the same ThinkMate platform; the memory controller will negotiate a common speed and timing across all populated slots.

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