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Two green DDR4 RDIMM sticks, black chips, no heat spreader

NEMIX RAM

NEMIX RAM THINKMATE 256GB (2x128GB) DDR4 3200 ECC RDIMM memory upgrade

SKU CH-S4PK-TFD5N

A 256 GB DDR4 ECC RDIMM kit running at 3200 MHz with CL22 latency and 1.2 V operation

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • High-capacity kit doubles server memory to 256GB with two 128GB modules
  • ECC registered design detects and corrects data errors for mission-critical stability
  • DDR4 3200 speed delivers PC4-25600 bandwidth for demanding workloads
  • Low 1.2V operation reduces power draw and heat in dense racks
  • Rigorously stress-tested modules ensure reliability in ThinkMate RAX-XS4-11S3-SH servers

Compatible THINKMATE Server Memory

This 256GB kit contains two 128GB DDR4 3200 registered ECC RDIMMs built for THINKMATE RAX-XS4-11S3-SH rackmount servers. It targets administrators who need maximum registered capacity in a validated configuration.

Registered ECC With 4Rx4 Organisation

Each module runs at PC4-25600 speed with CL22 latency at 1.20V and uses a 4Rx4 rank layout that the memory controller must support. The registered buffer and error-correcting code are the decisive factors for stable operation in the qualified platform.

Two-Module Kit For Paired Population

The pair occupies two 288-pin slots and leaves remaining DIMM positions free for further expansion within the server's limits. No heat spreaders are fitted, so airflow clearance follows the chassis design rather than module height.

How it compares

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

Price $1,983.99
Pricier than about 68% 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 $7.75 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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

Will the 3200 MHz speed run at that rate in my ThinkMate rackmount server?

The modules are rated DDR4 3200 PC4-25600; actual operating speed depends on the server memory controller and populated DIMM slots.

What does the 4Rx4 rank configuration mean for memory-channel limits?

Each 128 GB module is quad-rank 4Rx4, so two modules present eight ranks per channel — check the server documentation for maximum ranks per channel.

Do these 288-pin RDIMMs fit the ThinkMate RAX-XS4-11S3-SH memory slots?

Yes, they are 288-pin DDR4 RDIMMs built for that ThinkMate rackmount server model.

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