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Sixteen green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 256GB (16x16GB) DDR5 4800 CL40 ECC RDIMM for THINKMATE GPX-XS8-24S4-4GPU Workstation memory upgrade

SKU CH-MJGJ-B4W70

256GB DDR5 4800 ECC registered kit with 16 modules at CL40 and 1.1V for the Thinkmate GPX-XS8-24S4-4GPU workstation

  • Total capacity256 GB (16 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB capacity from sixteen 16 GB modules for large workloads
  • DDR5 4800 speed rated PC5-38400 for high bandwidth
  • ECC registered RDIMM design protects data integrity
  • 1 V operation at CL40 latency reduces power draw
  • Validated compatible with ThinkMate GPX-XS8-24S4-4GPU workstation

Capacity and configuration

This kit provides 256GB of DDR5 memory in sixteen 16GB modules, delivering 4800 MT/s speed with CL40 latency. It is built for the THINKMATE GPX-XS8-24S4-4GPU workstation and targets users who need maximum registered ECC capacity for memory-intensive workloads.

Thermals, noise and power

Each module operates at 1.1V without a heat spreader, relying on the workstation's directed airflow for cooling. Registered buffering and ECC add minimal electrical overhead, so power draw scales predictably with the full 16-module population under sustained load.

Build and daily implications

The 288-pin RDIMM form factor uses major OEM chips from Samsung, Micron or Hynix and omits a heat spreader to fit dense server DIMM slots. Installing all sixteen modules fills every available channel, leaving no room for further expansion and requiring careful slot population order per the system manual.

How it compares

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

Price $6,456.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (16 × 16 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $25.22 per GB
Pricier than about 70% 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 DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-618K16
Total capacity256 GB (16 × 16 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items256 GB (16 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How do I install the 16 DDR5 RDIMM modules into the THINKMATE GPX-XS8-24S4-4GPU workstation and which step is most often missed?

Power off the system, open the chassis, align each 288-pin module with its slot, press firmly until the retention clips click, then verify all 16 modules are detected in BIOS before closing the case.

What maintenance or replacement will this 256GB DDR5 ECC registered memory kit need over its service life?

The modules have no heat spreaders and no moving parts; they require no scheduled maintenance and are covered by a lifetime replacement warranty if a module fails.

What is the first limit that appears when this DDR5 4800 CL40 1.1V memory runs sustained workloads on the THINKMATE workstation?

The CL40 latency at 4800 MT/s and 1.1 V sets the bandwidth ceiling; sustained throughput cannot exceed the JEDEC DDR5-4800 specification.

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