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Two green circuit boards with black chips and gold edge connectors

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 4800 CL40 1.1V 2Rx8 UDIMM memory upgrade

SKU CH-DCD3-70TF3

64 GB DDR5 kit of two 32 GB UDIMMs running at 4800 MT/s CL40 1.1 V for Supermicro workstations

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeUnbuffered
  • Rated voltage1.1 V

Capacity 64GB 2X32GB

  • 64 GB total capacity for demanding workloads
  • DDR5 4800 MT/s speed with PC5-38400 bandwidth
  • CL40 latency at 1.10 V operating voltage
  • 2Rx8 dual-rank organisation on Samsung Micron Hynix chips
  • 288-pin UDIMM form factor for Supermicro systems

System-Specific DDR5 Upgrade Kit

This 64 GB kit contains two 32 GB unbuffered UDIMMs built for Supermicro desktop and workstation boards. It targets system builders and IT professionals who need validated memory for mission-critical workloads. Each module runs at DDR5 4800 with CL40 timings at the standard 1.10 V operating voltage. The dual-rank 2Rx8 organisation helps maximise density on platforms that support it.

288-Pin Unbuffered Design

Modules use a standard 288-pin DDR5 edge connector and ship without heat spreaders, keeping the profile low for dense chassis layouts. Unbuffered signalling means the memory connects directly to the CPU controller without a register, so the motherboard must support non-ECC UDIMM populations. Samsung, Micron or Hynix DRAM chips are selected per production lot and stress-tested under load before shipment.

Replaces Slower or Smaller DDR5 Kits

The jump makes sense when a Supermicro C9Z790-CGW or compatible board is running at a lower data rate or with less than 64 GB total capacity. Moving to PC5-38400 modules restores the platform’s rated memory bandwidth for virtualisation, compilation or large-dataset tasks. Builders who need ECC, registered DIMMs or higher frequencies must select a different part number.

How it compares

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

Price $893.99
Pricier than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $13.97 per GB
Pricier than about 60% 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 Non-ECC Unbuffered UDIMM
Part numberMD38400-328K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 UDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB (2 × 32 GB) DDR5 4800 MHz PC5-38400 2Rx8 1.1 V CL40 288-PIN Non-ECC Unbuffered UDIMM KIT

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Questions about this item

What DDR5 speed and PC5 bandwidth does this kit run at?

The kit operates at DDR5 4800 MT/s, which corresponds to the PC5-38400 standard.

Does the 288-pin UDIMM form factor fit a standard desktop DIMM slot?

Yes, each module is a 288-pin DDR5 UDIMM, the standard desktop form factor.

Do I need to enable anything in the BIOS to reach the rated CL40 timing at 1.1 V?

The modules are JEDEC-standard 1.1 V parts; they should run at CL40 automatically, but verify the motherboard is set to the default DDR5 profile.

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