We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Twelve bare green DDR5 memory sticks in a row

NEMIX RAM

NEMIX RAM MR38400-314K12 384GB (12x32GB) DDR5 4800 CL40 1.1V 288-Pin ECC RDIMM memory upgrade

SKU CH-4XF5-1F0MR

A 384GB DDR5 server memory kit with twelve 32GB registered ECC modules running at 4800MHz CL40 and 1.1V for ThinkMate Supermicro systems

  • Total capacity384 GB (12 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 384 GB capacity across twelve 32 GB modules
  • DDR5 4800 MT/s speed for high-throughput workloads
  • ECC registered RDIMM protects data integrity
  • 1 V operation reduces server power draw
  • Validated for ThinkMate Supermicro SuperServer 521C-NR

Capacity and form factor

This NEMIX RAM kit delivers 384GB across twelve 32GB DDR5 4800 CL40 288-pin ECC registered DIMMs. It is built for servers and workstations that require registered error-correcting memory in high-density configurations.

Registered ECC operation

Registered signalling and on-die ECC protect data integrity under sustained multi-threaded workloads. The 1.10V operating voltage and CL40 latency are specified for stable operation at the rated PC5-38400 speed grade.

ThinkMate Supermicro 521C-NR target

The kit is validated for the ThinkMate Supermicro SuperServer 521C-NR; systems needing unbuffered DIMMs, non-ECC modules or a different DDR generation should select alternate memory.

How it compares

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

Price $9,920.99
Pricier than about 87% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (12 × 32 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $25.84 per GB
Pricier than about 71% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineTHINKMATE Server/Workstation Compatible Series Memory
Model nameTHINKMATE DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-314K12
Total capacity384 GB (12 × 32 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 rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTHINKMATE
In the box
Included items384 GB (12 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the twelve 32 GB modules need any firmware updates or scheduled replacement after extended server use?

The modules are built with major OEM Samsung, Micron or Hynix DRAM and are rigorously stress tested under load before shipping, so no firmware updates or scheduled replacement are required during normal operation.

What limit appears first when the kit runs continuously at DDR5 4800 CL40 in a ThinkMate Supermicro SuperServer 521C-NR?

The registered ECC RDIMM design with 1Rx4 organisation and 1.10 V operation is validated for sustained server workloads, so thermal throttling or signal integrity limits are not reached under standard chassis airflow.

How much noise, heat or power draw should I expect from the 384 GB kit running all day in a 288-pin DDR5 server platform?

Each module runs at 1.1 V without a heat spreader, relying on system airflow; registered buffering keeps signal power low, so the kit adds minimal heat and no audible noise beyond normal server fans.

More in Model-Specific Memory Upgrades

Similar items