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Eight green DDR5 RDIMM sticks in static bags

NEMIX RAM

NEMIX RAM 1TB (8x128GB) DDR5 4800 CL40 ECC RDIMM 288-Pin 1.1V THINKMATE 521C-NR

SKU CH-8RFT-VTQV1

Eight 128 GB DDR5 4800 ECC registered DIMMs at CL40 and 1.1 V, validated for the Thinkmate 521C-NR server

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 1TB total capacity with eight 128GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design for data integrity
  • CL40 latency at 1.1V operating voltage
  • 288-pin RDIMM form factor for ThinkMate 521C-NR

1TB DDR5 ECC RDIMM kit for THINKMATE 521C-NR

This registered DDR5 memory kit delivers 1TB total capacity across eight 128GB modules. It operates at 4800 MT/s with CL40 latency and 1.1V voltage. The 288-pin RDIMM form factor with 4Rx4 organisation is validated for the THINKMATE Supermicro SuperServer 521C-NR platform.

ECC registration and OEM chip selection

On-die ECC and registered buffering protect data integrity under sustained server workloads. Modules are built with Samsung, Micron or Hynix components and stress-tested under load before shipping. The kit contains no heat spreaders, relying on chassis airflow for thermal management.

Suited for memory-heavy server deployments

Ideal for virtualisation hosts, database nodes or compute clusters that require maximum registered capacity per channel. Not suited for desktop boards that accept only unbuffered UDIMMs, systems limited to lower-density modules, or builds needing heatsink-equipped DIMMs for restricted airflow environments.

How it compares

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

Price $30,210.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $30.21 per GB
Pricier than about 86% 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 numberMR38400-744K8
Total capacity1 TB (8 × 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 items1 TB (8 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the 128GB 4Rx4 modules need any firmware updates or reseating over time?

The modules are rigorously stress tested before shipping and carry a lifetime replacement warranty; no firmware updates or scheduled reseating are required.

At continuous 4800 MT/s load, does the CL40 latency or the 1.10V voltage become the first bottleneck?

CL40 is the rated timing at 4800 MT/s, and the modules operate at the standard 1.10V; neither parameter shifts under sustained load.

Without a heat spreader, how hot do the 8 modules run and what airflow is needed in a 521C-NR chassis?

Registered DDR5 RDIMMs at 1.10V run cool; standard server front-to-back airflow in the 521C-NR is sufficient to keep all eight modules within spec.

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