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Six green DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM MR38400-924K6 384GB (6x64GB) DDR5 4800 CL40 2Rx4 1.1V 288-Pin ECC RDIMM SuperMicro memory upgrade

SKU CH-B1SX-4JQEZ

A 384GB registered ECC DDR5 kit of six 64GB modules at 4800 CL40 for SuperMicro servers

  • Total capacity384 GB (6 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 384 GB total capacity from six 64 GB modules
  • DDR5 4800 speed delivers high bandwidth for server workloads
  • ECC registered design protects data integrity in mission-critical systems
  • 1 V operation reduces power draw at full load
  • Validated for SuperMicro X13SEW-TF and X13SEW-F motherboards

384 GB DDR5 ECC RDIMM kit

This 384 GB kit contains six 64 GB DDR5 4800 modules built for SuperMicro X13SEW-TF and X13SEW-F motherboards. It targets server and workstation administrators who need registered ECC memory for mission-critical workloads.

Verify DDR5 RDIMM support and slot count

Confirm the motherboard accepts DDR5 288-pin RDIMM modules and provides at least six slots before ordering. Check that the system BIOS is current and that the platform supports 2Rx4 registered ECC at 1.1 V. Mixing with unbuffered or non-ECC DIMMs will prevent boot.

No heat spreader, standard server form factor

Modules ship without heat spreaders, matching typical server chassis airflow designs. The 288-pin RDIMM connectors seat directly into registered DIMM slots; ensure the retention levers engage fully. Registered buffering adds a clock cycle, so verify the platform expects registered memory for stable operation.

How it compares

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

Price $10,514.99
Pricier than about 88% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (6 × 64 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $27.38 per GB
Pricier than about 76% 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 numberMR38400-924K6
Total capacity384 GB (6 × 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 items384 GB (6 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What comes in the box with the MR38400-924K6 kit and do I need anything else?

The kit includes six 64 GB DDR5 4800 CL40 2Rx4 ECC RDIMM modules for a total of 384 GB; no extra parts are required for installation.

How do I decide between the available versions or capacities for this memory?

This part number is a single 384 GB kit of six 64 GB modules; other capacities are sold under different part numbers.

What does the PC5-38400 rating mean for real-world throughput in a server?

PC5-38400 is the JEDEC designation for DDR5 4800 modules with CL40 latency and 1.10 V operation.

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