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Sixteen green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 256GB (16x16GB) DDR5 4800MHz CL40 ECC RDIMM memory upgrade

SKU CH-1Q7V-WK9F8

256GB DDR5 4800MHz CL40 ECC registered server memory kit with sixteen 16GB 1Rx8 modules at 1.1V for Thinkmate RAX-QE12

  • 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 total capacity across 16 modules for large-scale workloads
  • DDR5 4800 MT/s speed delivers high throughput for server tasks
  • ECC registered design detects and corrects data errors automatically
  • CL40 latency at 1.1 V balances responsiveness with efficiency
  • Validated for ThinkMate RAX-QE12 rackmount server compatibility

Server Memory Kit

This NEMIX RAM kit delivers 256GB of DDR5 ECC registered memory across sixteen 16GB modules. It is built for Thinkmate RAX-QE12 rackmount servers that require registered DIMMs with error correction. The CL40 latency and 4800MHz speed match the platform's native specification. IT teams use it to maximise capacity in mission-critical workloads.

Build Integration

Each 288-pin RDIMM operates at 1.1V and uses a 1Rx8 organisation with major OEM chips from Samsung, Micron or Hynix. The registered buffer reduces electrical load on the server memory controller, allowing all sixteen slots to be populated simultaneously. No heat spreaders are fitted, so airflow must follow the chassis design. Compatibility is validated for the target Thinkmate system.

Upgrade Context

The kit replaces lower-capacity DDR5 RDIMM sets or fills empty slots to reach the 256GB maximum. The jump is worth it when virtualisation, database or compute workloads exceed the current memory ceiling. It does not suit workstations or desktops that require unbuffered non-ECC modules. Buyers needing mixed-rank configurations or different voltages should verify platform support before ordering.

How it compares

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

Price $7,123.99
Pricier than about 83% 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 $27.83 per GB
Pricier than about 78% 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

Will the 1.1 V operating voltage stay stable during sustained server workloads?

The modules run at 1.10 V, the standard DDR5 voltage, so power draw remains consistent under continuous load.

How much heat will sixteen registered DIMMs generate in a fully populated chassis?

These RDIMMs have no heat spreader; they rely on system airflow, and registered buffering adds minimal extra heat per module.

Does the Thinkmate RAX-QE12 need a specific BIOS revision before it will post with this 256 GB kit?

The kit is validated for the Thinkmate RAX-QE12 rackmount server; consult the system manual for any required firmware version.

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