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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR5 4800 CL40 ECC RDIMM THINKMATE RAX-QE12 memory upgrade

SKU CH-7ZDS-KN3H8

256 GB DDR5 4800 registered ECC server memory kit with four 64 GB modules at CL40 and 1.1 V

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB total capacity with four 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design detects and corrects data errors
  • 1 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits ThinkMate RAX-QE12 servers

256GB DDR5 ECC RDIMM kit for Thinkmate RAX-QE12

This 256GB kit contains four 64GB registered DDR5 modules built for the Thinkmate RAX-QE12 rackmount server. ECC and registered operation protect data integrity in multi-socket workloads. Modules run at 4800 MT/s with CL40 latency at 1.1V. The kit targets IT teams upgrading compatible Thinkmate platforms.

Capacity headroom at 4800 MT/s CL40

Four dual-rank 64GB modules fill four slots and deliver 256GB total capacity for virtualisation, database caching and large dataset processing. Bandwidth scales with the DDR5 4800 interface while registered buffering maintains signal quality at full population. Headroom ends when the platform slot count or memory controller limit is reached.

Replaces smaller RDIMM sets

Swapping a partial kit or mixed-speed modules for this matched 4x64GB set removes bandwidth mismatches and enables full-channel operation. The jump is worth it when the workload demands maximum registered ECC capacity at the platform's native 4800 MT/s rate. Systems needing higher frequencies or non-registered memory cannot use this kit.

How it compares

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

Price $6,525.99
Pricier than about 82% 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 $25.49 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 numberMR38400-924K4
Total capacity256 GB (4 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items256 GB (4 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will these DDR5 4800 CL40 ECC RDIMMs run reliably in a Thinkmate RAX-QE12 alongside existing DDR5 modules?

Yes, the kit is built for the Thinkmate RAX-QE12 and uses DDR5 4800 CL40 registered ECC modules at 1.1 V. Matching speed, voltage, rank and ECC type ensures stable operation with other identical DDR5 DIMMs.

How can I verify the 256 GB kit is recognised and running at 4800 MT/s with ECC active after installation?

Enter the server BIOS or UEFI and confirm the memory summary shows 256 GB total, 4800 MT/s data rate, CL40 timings and ECC enabled. Operating-system tools such as dmidecode or lshw will also report the correct speed, rank and ECC status.

What comes in the box and do I need any extra parts to install the four 64 GB RDIMMs?

The package contains four 64 GB DDR5 4800 CL40 288-pin ECC registered DIMMs — 256 GB total. No heat spreaders, cables, brackets or additional components are included or required for installation.

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