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 tray

NEMIX RAM

NEMIX RAM 768GB (12x64GB) DDR5 4800 PC5-38400 CL40 2Rx4 1.1V ECC RDIMM memory upgrade

SKU CH-NP6M-53X3Y

A 768 GB DDR5 4800 ECC registered server kit of twelve 64 GB 2Rx4 modules at 1.1 V CL40 for SuperMicro UP SuperServer SYS-111C-NR and SYS-521C-NR systems

  • Capacity768GB (12 x 64GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 768 GB total capacity from twelve 64 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth for server workloads
  • ECC registered RDIMM design protects data integrity in critical systems
  • 2Rx4 dual-rank organisation on 288-pin DDR5 form factor
  • Low 1.1 V operation reduces power draw in dense configurations

SuperMicro DDR5 4800 ECC RDIMM kit

This 768GB kit contains twelve 64GB DDR5 4800 registered DIMMs with ECC and a CL40 latency. It is built for SuperMicro UP SuperServer SYS-111C-NR and SYS-521C-NR systems using the X13SEDW-F motherboard. The modules run at 1.1V and use a 2Rx4 organisation.

Upgrading from lower-capacity DDR5 RDIMMs

Replacing smaller registered modules with this 12 x 64GB configuration raises total system memory to 768GB. The jump is worthwhile when workloads such as virtualisation, large databases or scientific computing exceed the capacity of the existing kit.

Suited for SuperMicro servers needing maximum

This kit fits administrators populating all twelve slots on the X13SEDW-F platform with validated ECC RDIMMs. Builds that require unbuffered memory, non-ECC modules or speeds above 4800 MT/s should look at something else.

Highlights

  • 768 GB total capacity from twelve 64 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth for server workloads
  • ECC registered RDIMM design protects data integrity in critical systems
  • 2Rx4 dual-rank organisation on 288-pin DDR5 form factor
  • Low 1.1 V operation reduces power draw in dense configurations

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-924K12
Capacity768GB (12 x 64GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank2Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content768GB (12X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the 288-pin DDR5 RDIMM form factor fit the DIMM slots on the SuperMicro SYS-111C-NR and SYS-521C-NR servers?

Yes, the 288-pin DDR5 RDIMM modules match the registered DIMM slots on the X13SEDW-F motherboard used in those SuperMicro UP SuperServer systems.

What is the correct way to populate all 12 modules across the memory channels, and which step is often missed?

Install the 12 modules evenly across all memory channels following the motherboard manual's population order; the step often missed is confirming the BIOS recognises the full 768 GB capacity after seating every module.

When should the 12 registered ECC modules be reseated or replaced to maintain stability?

Reseat the modules if the server reports corrected ECC errors or fails POST after hardware changes; replace any module that continues to log uncorrectable errors after firmware updates.

Also in this aisle

People compared these

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