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Four green DDR4 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR4 3200 PC4-25600 CL22 4Rx4 1.2V 288-Pin ECC RDIMM THINKMATE Server Memory Upgrade

SKU CH-0RG0-YFH2A

A 256 GB kit of four 64 GB DDR4 3200 ECC registered DIMMs for ThinkMate STX-WS-QS12-12E2 and STX-WS-QE36-14E2 Windows NAS servers

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 256 GB total capacity in a 4 x 64 GB kit
  • DDR4 3200 speed rated at PC4-25600 bandwidth
  • ECC registered RDIMM for server-grade error correction
  • 2 V operating voltage for efficient power draw
  • 288-pin form factor fits compatible Thinkmate systems

256GB DDR4 3200 ECC RDIMM kit

This 256GB kit contains four 64GB DDR4 3200 registered DIMMs with ECC and a CL22 latency. It is built for Thinkmate STX-WS-QS12-12E2 and STX-WS-QE36-14E2 Windows NAS systems that require registered memory. The modules operate at 1.2V and use 4Rx4 organisation for high-density server workloads.

Thermals, noise and power draw

Each module runs at the standard DDR4 voltage of 1.2V without a heat spreader, relying on chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller, helping keep system power draw predictable during normal operation. No moving parts are present, so the kit adds no audible noise to the server.

Sustained-load behaviour

The 4Rx4 density and ECC correction maintain data integrity during prolonged, write-intensive tasks such as database commits or RAID rebuilds. Modules are stress-tested under load before shipping to verify stability across extended duty cycles. Compatibility is limited to the listed Thinkmate platforms; builders needing different form factors or non-registered memory should look elsewhere.

How it compares

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

Price $1,888.99
Pricier than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $7.38 per GB
Cheaper than about 55% 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 numberMR25600-944K4
Total capacity256 GB (4 × 64 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 (4 × 64 GB) DDR4 3200 MHz PC4-25600 4Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I install the 288-pin DDR4 RDIMM modules in my Thinkmate server?

Power down the server, open the chassis, align each 64 GB module's notch with the slot key, press firmly until the retention clips click, then populate all four channels per the system manual for 256 GB total.

Will the ECC registered DIMMs need any firmware updates or battery replacements during their service life?

No firmware or battery maintenance is required; the modules are stress-tested at the factory and carry a lifetime replacement warranty from the manufacturer.

At what point does the CL22 latency at 3200 MT/s become the bottleneck during sustained workloads?

The CAS 22 timing at DDR4-3200 is the first limit reached under continuous heavy memory traffic, capping throughput before thermal or voltage constraints appear.

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