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Two green DDR5 server memory modules, bare circuit boards with black chips, 288-pin RDIMM form factor

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 4800 ECC RDIMM CL40 1.1V THINKMATE SuperServer 521C-NR memory upgrade

SKU CH-VRPN-0CPZV

A 128GB DDR5 4800 registered ECC kit with two 64GB 2Rx4 modules at 1.1V CL40 for Thinkmate SuperServer 521C-NR

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity with two 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for server data integrity
  • 10 V operation at CL40 latency timing
  • Validated for Thinkmate SuperServer 521C-NR systems

128 GB DDR5 RDIMM kit

This NEMIX RAM kit provides 128 GB of DDR5 ECC registered memory in two 64 GB modules. It is built for the THINKMATE SuperServer 521C-NR and runs at 4800 MT/s with CL40 latency at 1.10 V.

Replaces slower or smaller DDR5 RDIMMs

The jump is worth it when your workloads need more capacity per slot and error-correcting registered DIMMs for stability. It does not suit systems that require unbuffered memory or lower-density modules.

Fits 288-pin DDR5 RDIMM slots

The kit plugs directly into compatible server motherboards and uses major OEM chips from Samsung, Micron or Hynix. No heat spreader is included, so airflow across the modules must be provided by the chassis.

How it compares

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

Price $3,350.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $26.18 per GB
Pricier than about 72% 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 numberMR38400-924K2
Total capacity128 GB (2 × 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 items128 GB (2 × 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 the 288-pin DDR5 RDIMM modules fit the memory slots on my THINKMATE SuperServer 521C-NR?

Yes, the 288-pin DDR5 RDIMM form factor matches the slots on the THINKMATE SuperServer 521C-NR.

What is the correct way to install the two 64GB modules, and what step is often missed?

Power down the server, open the chassis, align each module's notch with the slot key, press firmly until the retention clips click, then verify both modules are recognised in the BIOS.

When will the ECC RDIMM kit need replacement in a 24/7 server workload?

The modules are built for continuous operation; replace only if memory diagnostics report uncorrectable errors or the server fails to POST with the kit installed.

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