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Two green DDR5 UDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 32GB (2x16GB) DDR5 4800 CL40 1.1V UDIMM SuperMicro Compatible memory upgrade

SKU CH-H0YR-QECWJ

A 32 GB dual-channel DDR5 kit running at 4800 MT/s with CL40 latency and 1.1 V operation, validated for SuperMicro workstations

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeUnbuffered
  • Rated voltage1.1 V

Capacity 32GB 2X16GB

  • 32 GB capacity with two 16 GB modules for multitasking headroom
  • DDR5 4800 MT/s speed rated at PC5-38400 bandwidth
  • CL40 CAS latency tuned for responsive system operation
  • 10 V operating voltage for efficient power draw
  • Validated for SuperMicro MBD-C9Z790-CGW workstation boards

SuperMicro DDR5 4800 UDIMM kit

This 32 GB kit contains two 16 GB DDR5 4800 modules built for SuperMicro desktop workstations and compatible motherboards. Each stick runs at 1.10 V with CL40 latency in a 288-pin unbuffered non-ECC layout. The 1Rx8 organisation suits single-threaded workloads and standard office applications.

Sustained-load behaviour

Modules are stress-tested under load to verify stability during extended compile jobs, virtual-machine hosting or rendering queues. The 1.10 V operating point keeps thermals modest without a heat spreader, allowing continuous operation at rated 4800 MT/s inside ventilated chassis. JEDEC-standard timing prevents down-clocking when all slots are populated.

DDR5 UDIMM practical limits

The 288-pin unbuffered interface tops out at the rated 4800 MT/s on supported SuperMicro platforms; higher data rates require motherboard qualification not covered by this kit. Non-ECC layout means single-bit errors are not corrected, so workloads needing error detection should choose registered ECC alternatives. Maximum capacity per channel follows the board maker's qualified-vendor list.

How it compares

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

Price $386.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $12.09 per GB
Pricier than about 57% 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 numberMD38400-618K2
Total capacity32 GB (2 × 16 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 rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items32 GB (2 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN Non-ECC Unbuffered UDIMM KIT

Other versions of this model

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Questions about this item

How much heat and power does the 1.10 V DDR5 4800 kit draw when the workstation runs all day?

Each 16 GB module runs at the standard DDR5 voltage of 1.10 V with no heat spreader, so sustained load stays within normal JEDEC thermal limits for unbuffered UDIMMs.

What motherboard slot and chipset must I already have for this 288-pin DDR5 4800 CL40 kit to work?

You need a motherboard with 288-pin DDR5 UDIMM slots and a chipset that supports DDR5 4800 PC5-38400 non-ECC unbuffered memory, such as the Supermicro C9Z790-CGW board.

Will the 1Rx8 rank layout of these modules work alongside other DDR5 DIMMs I keep in the remaining slots?

Yes, the 1Rx8 single-rank design is compatible with mixed-rank populations on supported Supermicro boards; populate empty slots following the motherboard manual for best stability.

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