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Four green DDR4 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR4 3200 CL22 4Rx4 ECC RDIMM ThinkMate Server Memory Upgrade

SKU CH-MC81-WT5S2

512 GB DDR4 3200 ECC registered server memory kit with four 128 GB 4Rx4 modules for ThinkMate TWX-QS8 tower servers

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 512 GB total capacity from four 128 GB modules
  • DDR4 3200 MHz speed rated at PC4-25600
  • ECC registered RDIMM for data integrity
  • 2 V operating voltage with CL22 latency
  • Validated for ThinkMate TWX-QS8-14E3 and TWX-QS8-24E3 tower servers

512GB DDR4 3200 ECC RDIMM kit

This 512GB kit contains four 128GB DDR4 3200 registered DIMMs with ECC and a CAS latency of CL22. It is built for ThinkMate TWX-QS8 tower servers that require 4Rx4 registered memory. The modules operate at 1.2V and use major OEM chips from Samsung, Micron or Hynix.

Check ThinkMate TWX-QS8 compatibility

Verify that your server is a TWX-QS8-14E3 or TWX-QS8-24E3 model before ordering. The motherboard must support 4Rx4 registered DDR4 RDIMMs at 3200MT/s and accept a total of 512GB across four slots. Consult the system manual for approved population rules and any BIOS version requirements.

Thermals noise and power in normal use

Each module runs at 1.2V without a heat spreader, relying on server chassis airflow for cooling. Registered ECC RDIMMs draw modest power per DIMM and produce no audible noise since they have no moving parts. Ensure the server fans provide adequate airflow across the memory slots for sustained workloads.

How it compares

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

Price $3,550.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $6.94 per GB
Cheaper than about 58% 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 numberMR25600-744K4
Total capacity512 GB (4 × 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 items512 GB (4 × 128 GB) DDR4 3200 MHz PC4-25600 4Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the 512GB kit arrive as four 128GB sticks or must extra modules be purchased?

The kit contains four 128GB modules, giving 512GB total with nothing else needed.

Why is this CL22 4Rx4 DDR4 3200 version the right choice for ThinkMate TWX-QS8 servers?

It matches the TWX-QS8-14E3 and TWX-QS8-24E3 qualified speed, voltage, rank and ECC registered profile.

What does the PC4-25600 rating mean once the memory is installed in a ThinkMate tower?

It confirms 3200 MT/s throughput at 1.20V with CL22 latency under the server's registered ECC controller.

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