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Four green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR5 4800 CL40 1.1V ECC RDIMM THINKMATE SuperServer 521C-NR memory upgrade

SKU CH-J0PZ-YCXX0

256 GB DDR5 4800 ECC RDIMM kit (4 × 64 GB) for ThinkMate SuperServer 521C-NR, CL40, 1.1 V, registered 2Rx4 modules

  • 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 across four 64 GB modules
  • DDR5 4800 MT/s speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM design protects data integrity
  • Low 1.10 V operating voltage reduces power draw
  • Validated for THINKMATE SuperServer 521C-NR compatibility

Compatible DDR5 4800 ECC RDIMM kit

This NEMIX RAM kit delivers 256GB across four 64GB DDR5 4800 modules built for the THINKMATE SuperServer 521C-NR. Each stick is a 288-pin registered DIMM with ECC and a 2Rx4 organisation running at 1.10V. The modules are validated for that specific server platform.

Suited for capacity-hungry server workloads

IT teams expanding memory in a 521C-NR for virtualisation, databases or large datasets will match the factory specification. Buyers needing non-ECC unbuffered DIMMs, lower capacities or different form factors should look elsewhere.

Fits 288-pin DDR5 RDIMM slots on the target server

The registered design and ECC function rely on the motherboard's registered memory controller. No heat spreaders are included so airflow in the chassis must handle thermal load. The kit frees all four channels for maximum bandwidth in a single upgrade.

How it compares

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

Price $7,216.99
Pricier than about 83% 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 $28.19 per GB
Pricier than about 79% 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

Does this kit require a THINKMATE SuperServer 521C-NR to operate?

This kit is validated for the THINKMATE SuperServer 521C-NR and uses 288-pin DDR5 RDIMM modules at 1.10 V with ECC and registered buffering.

Will the CL40 latency change if my server currently runs slower DDR5 modules?

The modules run at DDR5 4800 with CL40 timing; the memory controller will negotiate the highest common speed across all populated slots.

How can I confirm the 256 GB kit is recognised at 4800 MT/s after installation?

Check the BIOS memory information or OS tools such as dmidecode to verify 4 x 64 GB modules at 4800 MT/s with ECC active.

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