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Six green DDR4 RDIMM sticks, black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 768GB (6x128GB) DDR4 3200 CL22 ECC RDIMM THINKMATE XS8-24S3 Workstation memory upgrade

SKU CH-TNW4-2GWQ9

Six 128 GB DDR4 3200 ECC RDIMM modules provide 768 GB of registered server memory for the Thinkmate XS8-24S3 workstation

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 768 GB total capacity from six 128 GB modules
  • DDR4 3200 speed rated at PC4-25600 bandwidth
  • ECC registered RDIMM design protects data integrity
  • 2 V low-voltage operation reduces power draw
  • Validated for Thinkmate XS8-24S3 workstation compatibility

Capacity and configuration

This kit provides 768 GB of DDR4 memory across six 128 GB RDIMM modules. It is built for ThinkMate XS8-24S3 workstations that require registered ECC memory. The 288-pin form factor matches the platform's DIMM slots. Buyers needing unbuffered UDIMMs or non-ECC modules cannot use this kit.

Registered ECC with 4Rx4 organisation

Each module uses a 4Rx4 rank structure and operates at DDR4-3200 (PC4-25600) with CL22 latency at 1.20 V. The registered buffer and error-correcting code protect data integrity in multi-socket server workloads. Systems that do not support registered ECC or 4Rx4 population rules will not post with these DIMMs.

Sustained load behaviour

Modules are stress-tested under load before shipping to verify stability during extended compute tasks. The registered design reduces electrical loading on the memory controller when all six slots are populated. Workloads that exceed the platform's maximum supported capacity per channel will not benefit from this kit.

How it compares

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

Price $5,159.99
Pricier than about 80% 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 $6.72 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 numberMR25600-744K6
Total capacity768 GB (6 × 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 items768 GB (6 × 128 GB) DDR4 3200 MHz PC4-25600 4Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How does the 3200 MT/s speed translate when the kit is installed in the Thinkmate XS8-24S3?

The modules run at DDR4 3200 (PC4-25600) with a CAS latency of 22, delivering the rated throughput provided the workstation's memory controller supports that frequency.

What does the PC4-25600 designation limit in real use?

PC4-25600 caps the peak transfer rate at 25,600 MB/s per module; the registered ECC design adds one cycle of buffering, so sustained bandwidth depends on the platform's memory controller.

Will the 288-pin RDIMM sticks fit the Thinkmate XS8-24S3 DIMM slots without a heat spreader?

Yes, each 128 GB module is a standard 288-pin DDR4 RDIMM without a heat spreader, matching the workstation's registered DIMM slots.

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