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Eight green DDR5 RDIMM modules with black chips and gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM 512GB (8x64GB) DDR5 4800 CL40 ECC RDIMM SuperMicro Server memory upgrade

SKU CH-5E63-25GAX

Eight 64 GB DDR5 registered ECC modules totalling 512 GB at 4800 MHz CL40, validated for SuperMicro SYS-111C-NR and SYS-521C-NR servers

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 512GB total capacity across 8 modules for high-density server workloads
  • DDR5 4800 speed with CL40 latency delivers responsive data throughput
  • ECC registered design detects and corrects memory errors in mission-critical systems
  • 10V operating voltage reduces power draw per 64GB 2Rx4 module
  • Validated for SuperMicro SYS-111C-NR, SYS-521C-NR and X13SEDW-F platforms

SuperMicro DDR5 4800 ECC RDIMM Kit

This 512GB kit contains eight 64GB registered DDR5 modules rated at 4800 MT/s with CL40 latency and ECC. It targets administrators upgrading SuperMicro UP SuperServer SYS-111C-NR and SYS-521C-NR systems or the X13SEDW-F motherboard where registered ECC memory is required.

Straightforward DIMM installation

Modules are 288-pin RDIMMs that seat in standard DDR5 server slots; the 2Rx4 organisation and 1.10V operation match the platform specification. Common issues arise when mixing ranks or speeds across channels, so populate all eight slots with this matched kit and verify the BIOS recognises the full 512GB at 4800 MT/s.

Suited for memory-bound server workloads

The high capacity and registered ECC design fit virtualisation hosts, database nodes and compute clusters that need maximum DIMM density per channel. Builds requiring unbuffered UDIMMs, lower voltages or non-ECC modules should look elsewhere.

How it compares

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

Price $12,591.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $24.59 per GB
Pricier than about 69% 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 numberMR38400-924K8
Total capacity512 GB (8 × 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 items512 GB (8 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How can I verify the kit is running at the rated 4800 speed and CL40 latency after installation?

Enter the system BIOS or UEFI and confirm the memory frequency shows 4800 MT/s with timings set to CL40; the registered ECC modules will also report corrected errors in the OS event logs if they are active.

What does the 512 GB kit contain and are any extra parts required for installation?

The box includes eight 64 GB 288-pin DDR5 RDIMMs; no additional components are needed — simply seat each module in the compatible SuperMicro server motherboard slots.

Which capacity configuration should I choose for a SuperMicro SYS-111C-NR or SYS-521C-NR system?

This 512 GB kit (8 × 64 GB, 2Rx4, 1.10 V, CL40) matches the validated part number MR38400-924K8 for those SuperMicro UP SuperServer platforms.

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