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Two green DDR5 RDIMM modules with black chips, no heat spreaders, 288-pin

NEMIX RAM

NEMIX RAM THINKMATE DDR5 4800 256GB (2X128GB) CL40 4Rx4 1.1V ECC RDIMM memory upgrade

SKU CH-CBR8-T9WZT

256 GB DDR5-4800 ECC registered server kit, two 128 GB modules at CL40 1.1 V for Thinkmate HDX-QN8-52E4 high-density servers

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB capacity across two 128 GB modules enables high-density server workloads
  • DDR5 4800 speed rated at PC5-38400 delivers fast data throughput for compute-intensive tasks
  • ECC registered RDIMM design detects and corrects errors to protect mission-critical data integrity
  • 1 V operating voltage reduces power draw while maintaining registered stability
  • Validated for ThinkMate HDX-QN8-52E4 high-density servers ensures drop-in compatibility

ThinkMate DDR5 4800 server kit

This 256GB kit contains two 128GB DDR5 4800 RDIMM modules built for ThinkMate HDX-QN8-52E4 high-density servers. Registered ECC circuitry protects data integrity in mission-critical workloads. The modules run at 1.1V with a CL40 latency profile.

Sustained-load behaviour

Registered buffering reduces electrical load on the memory controller during continuous operation. ECC corrects single-bit errors on the fly without halting the system. Major OEM Samsung, Micron or Hynix DRAM chips are stress-tested under load before shipping.

Installation notes

The 288-pin DDR5 form factor seats in standard RDIMM slots; no heat spreader is fitted, so clearance is minimal. Verify the server BIOS supports 4Rx4 128GB modules before installation. Mixing with different ranks or speeds will prevent the system from posting.

How it compares

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

Price $8,384.99
Pricier than about 85% 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 $32.75 per GB
Pricier than about 90% 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 numberMR38400-744K2
Total capacity256 GB (2 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items256 GB (2 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How much power does the 1.1V DDR5 4800 kit draw under sustained server loads?

Each module runs at 1.1V; total draw depends on the platform's memory controller and workload, so consult the THINKMATE HDX-QN8-52E4 documentation for exact figures.

What motherboard features are required for these 4Rx4 ECC RDIMMs to function?

A DDR5 RDIMM slot supporting 288-pin registered ECC modules at 4800 MT/s with 4Rx4 organisation and 1.1V operation.

Will the CL40 4Rx4 modules run stably in a THINKMATE HDX-QN8-52E4 populated with older DDR5 DIMMs?

Mixing ranks or speeds forces the system to run at the lowest common speed and loosest timings; populate identical kits for guaranteed stability.

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