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Four bare green DDR5 UDIMM sticks in a kit

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 5200 CL38 1.1V 2Rx8 UDIMM memory upgrade

SKU CH-PYSA-BEPVA

A 128GB kit of four 32GB DDR5 modules rated at 5200 MT/s with CL38 latency and 1.1V operation for compatible Supermicro desktop workstations

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 5200 (PC5 41600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL38
  • Buffer typeUnbuffered
  • Rated voltage1.1 V

Capacity 128GB 4X32GB

  • 128 GB kit for heavy workloads
  • DDR5 5200 speed for fast data rates
  • CL38 latency for responsive timing
  • 1 V operation for efficient power use
  • Validated for Supermicro workstation compatibility

128GB DDR5 kit for Supermicro workstations

This 128GB kit contains four 32GB DDR5 5200 unbuffered UDIMM modules rated at CL38 and 1.1V. It is built for Supermicro desktop and SuperWorkstation platforms such as the MBD-C9Z790-CGW motherboard. The modules use major OEM chips from Samsung, Micron or Hynix and operate without ECC or heat spreaders. Builders expanding memory on these validated boards can install the kit directly into the 288-pin slots.

Standard voltage and unbuffered design keep

Running at the DDR5 base voltage of 1.1V, the modules draw minimal power during typical desktop and workstation workloads. With no heat spreader attached, airflow across the bare PCB is sufficient for normal operation in a chassis with adequate case cooling. The unbuffered topology adds no extra electrical load, so system fan curves remain unchanged for everyday tasks.

Sustained workloads stay within JEDEC limits

Under continuous multi-threaded loads the kit maintains its rated 5200 MT/s speed and CL38 latency at 1.1V. The 2Rx8 organisation distributes density across ranks, allowing the memory controller to sustain bandwidth without exceeding the standard voltage envelope. Because the modules are validated for the target Supermicro platforms, no manual timing adjustments are required to achieve stable long-duration performance.

How it compares

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

Price $1,747.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $13.66 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 5200 MHz Non-ECC Unbuffered UDIMM
Part numberMD41600-328K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR5 UDIMM
Performance
Rated speedDDR5 5200 (PC5 41600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL38
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB (4 × 32 GB) DDR5 5200 MHz PC5-41600 2Rx8 1.1 V CL44 288-PIN Non-ECC Unbuffered UDIMM KIT

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Questions about this item

How do I install the four 32GB DDR5 UDIMMs in my Supermicro workstation and which step is often missed?

Power off, open the case, align each 288-pin module with the slot notch, press firmly until both latches click, then enable XMP or manually set 5200 MT/s and CL38 in the BIOS — the step most people skip is confirming the BIOS actually applies the 5200 speed and CL38 timing after reboot.

What maintenance or replacement will this 128GB kit need over its lifetime?

No scheduled maintenance is required; keep the interior dust-free and ensure case airflow stays adequate. If a module ever fails, the lifetime replacement warranty covers a direct swap of the defective 32GB stick.

What limit appears first when this DDR5 5200 CL38 memory runs sustained heavy workloads?

The 1.10 V operating voltage and lack of a heat spreader mean thermal throttling is the first ceiling you will hit under prolonged maximum bandwidth use.

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