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 green DDR5 RDIMM modules in anti-static packaging

NEMIX RAM

NEMIX RAM MR38400-314K12 384GB (12x32GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-0KKA-4CF1P

A 384 GB DDR5 ECC registered server memory kit with twelve 32 GB modules at 4800 MT/s for Supermicro systems

  • Capacity384GB (12 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 384 GB total capacity across 12 modules
  • DDR5 4800 MT/s speed for high-throughput workloads
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • 288-pin RDIMM form factor fits compatible Supermicro systems

System-specific DDR5 server memory

NEMIX RAM MR38400-314K12 is a 384GB kit of twelve 32GB DDR5 4800 ECC RDIMM modules built for SuperMicro FatTwin and SuperServer platforms. IT teams upgrading SYS-F521E3-RTB, SYS-F511E2-RT or X13SEFR-A systems use this kit to fill all slots with registered, 1Rx4 memory that runs at 1.1V.

Registered ECC RDIMM at CL40

Each module is a 288-pin DDR5 RDIMM with on-die ECC and a CAS latency of 40. The registered buffer and 1Rx4 organisation are required by the target SuperMicro motherboards, so the kit will not work in consumer boards or unbuffered slots.

Low-voltage operation without heat spreaders

The modules operate at 1.1V and ship without heat spreaders, relying on server chassis airflow for cooling. In a populated FatTwin node the DIMMs stay within thermal limits at stock speed, and the registered design keeps power draw predictable under sustained load.

Highlights

  • 384 GB total capacity across 12 modules
  • DDR5 4800 MT/s speed for high-throughput workloads
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • 288-pin RDIMM form factor fits compatible Supermicro systems

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-314K12
Capacity384GB (12 x 32GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content384GB (12X32GB) DDR5 4800MHZ PC5-38400 1Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What does the 4800 MT/s rating mean when the modules are installed in a Supermicro server?

The kit will run at DDR5-4800 (PC5-38400) with CL40 latency at the standard 1.10 V, provided the platform memory controller supports that speed.

How does the ECC RDIMM interface affect usable capacity and speed on these boards?

Registered ECC modules add a clock cycle for the register, so the memory controller sees 384 GB of protected capacity at the rated DDR5-4800 data rate.

Will the 288-pin DDR5 RDIMM sticks fit the DIMM slots on a Supermicro FatTwin or SuperServer system?

Yes, the 288-pin DDR5 RDIMM form factor matches the slots on the listed Supermicro FatTwin and SuperServer models.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.