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Two green DDR4 RDIMM modules with black chips, no heat spreaders, 288-pin edge connectors

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR4 3200 ECC RDIMM CL22 1.2V memory upgrade

SKU CH-AQS3-FQVVX

256 GB DDR4-3200 ECC registered server memory kit, two 128 GB modules at CL22 and 1.2 V for ThinkMate GPU-optimised systems

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 256GB total capacity from two 128GB modules
  • DDR4 3200 speed with PC4-25600 bandwidth rating
  • ECC registered design detects and corrects data errors
  • CL22 latency at 1.2V operating voltage
  • Validated for ThinkMate GPX-QS4 and GPX-QT8 GPU-optimized servers

256GB DDR4 ECC RDIMM kit

This NEMIX RAM kit provides 256GB of DDR4 3200 registered ECC memory in two 128GB modules. It is built for ThinkMate GPU-optimised servers that require 4Rx4 registered DIMMs at 1.2V.

Who should use this kit

IT teams upgrading ThinkMate GPX-QS4-12E2-4GPU or GPX-QT8-22E2-8GPU servers will find direct compatibility. Builders needing unbuffered UDIMMs, non-ECC modules or capacities beyond 256GB should look elsewhere.

Capacity and headroom

The 256GB total handles large virtualisation clusters, GPU compute workloads and in-memory databases with room to spare. Systems limited to fewer DIMM slots or lower per-slot limits will reach the ceiling before this kit is fully utilised.

How it compares

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

Price $1,735.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $6.78 per GB
Cheaper than about 59% 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 DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-744K2
Total capacity256 GB (2 × 128 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items256 GB (2 × 128 GB) DDR4 3200 MHz PC4-25600 4Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What motherboard slot type must my ThinkMate server provide for these 288-pin DDR4 RDIMMs?

The server needs DDR4 RDIMM slots that accept 288-pin registered modules; the kit is built for ThinkMate GPX-QS4-12E2-4GPU and GPX-QT8-22E2-8GPU platforms.

Will these 4Rx4 registered ECC modules work in the same channels as older 2Rx4 DDR4 RDIMMs already installed?

Mixing 4Rx4 with 2Rx4 ranks in one channel is not recommended; populate matching ranks per channel or follow the server manual for supported rank combinations.

How can I confirm the kit is running at the rated 3200 MT/s and CL22 after installation?

Check the BIOS memory information screen or use a tool such as dmidecode to verify speed shows 3200 MT/s and CAS latency reads CL22.

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