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Eight green DDR5 RDIMM sticks, black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (8x32GB) DDR5 4800 CL40 1.1V ECC RDIMM SuperMicro X13SEI-F X13SEI-TF memory upgrade

SKU CH-9NK0-892G9

Eight 32 GB DDR5 registered ECC modules at 4800 MT/s CL40 1.1 V for SuperMicro X13SEI-F and X13SEI-TF servers

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256GB total capacity scales server workloads
  • DDR5 4800 speed with CL40 latency
  • ECC RDIMM registered design ensures data integrity
  • 1V operating voltage reduces power draw
  • 8x32GB kit validated for SuperMicro X13SEI platforms

Server memory upgrade

This 256 GB kit contains eight 32 GB DDR5 registered DIMMs built for SuperMicro X13SEI-F and X13SEI-TF motherboards. ECC and registered operation protect data integrity in enterprise workloads. The modules run at 1.1 V and carry a CL40 latency rating.

DDR5 4800 interface limits

The DDR5 4800 standard delivers 38 400 MT/s bandwidth per module through a 288-pin connector. Registered signalling adds a clock cycle for stability in dense configurations. Single-rank 1Rx4 organisation keeps electrical loading low across all eight slots.

Capacity headroom and boundaries

Eight populated slots provide 256 GB total capacity for virtualisation, databases or large datasets. The 4800 MT/s speed and CL40 latency serve typical server tasks without overclocking headroom. Workloads needing higher bandwidth or lower latency will exceed this kit's design envelope.

How it compares

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

Price $6,841.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $26.73 per GB
Pricier than about 74% 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 numberMR38400-314K8
Total capacity256 GB (8 × 32 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 rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB (8 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I choose the 8×32 GB kit or a smaller capacity for my SuperMicro X13SEI-F?

The 256 GB kit uses eight 32 GB modules, filling every DIMM slot on the X13SEI-F and X13SEI-TF for maximum registered ECC capacity.

What does DDR5 4800 CL40 deliver once installed in the server?

Rated at 4800 MT/s with CAS 40 at 1.1 V, the modules run at the platform's native DDR5 speed for registered ECC workloads.

How does the 288-pin RDIMM interface limit real-world throughput?

The 288-pin registered DDR5 form factor operates at PC5-38400, capping bandwidth to the 4800 MT/s JEDEC standard for this server platform.

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