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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

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 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.

How it compares

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

Price $19,475.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $25.36 per GB
Pricier than about 70% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K12
Total capacity768 GB (12 × 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 systemsSupermicro
In the box
Included items768 GB (12 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 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.

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