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Four green DDR4 UDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 3200 CL22 2Rx8 1.2V 288-pin UDIMM memory upgrade

SKU CH-8WCX-540NK

A 128 GB kit of four 32 GB DDR4 3200 CL22 unbuffered UDIMMs built for ASRock TRX40 Taichi motherboards

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 128 GB total capacity across four 32 GB modules
  • DDR4 3200 speed with PC4-25600 bandwidth rating
  • CL22 CAS latency at 1.2 V operating voltage
  • 2Rx8 dual-rank organisation using major OEM chips
  • 288-pin unbuffered UDIMM form factor for desktop motherboards

128GB DDR4 Kit for ASRock TRX40

This NEMIX RAM kit delivers 128GB of DDR4 3200 memory in a matched set of four 32GB UDIMM modules. It runs at CL22 timings with a standard 1.2V operating voltage. The kit is validated for compatibility with the ASRock TRX40 Taichi motherboard.

Suits TRX40 builds needing maximum capacity

Builders populating all four slots on an ASRock TRX40 Taichi board for heavy multitasking or workstation workloads will use the full 128GB. Systems limited to lower memory densities or requiring ECC error correction should look elsewhere.

Straightforward UDIMM installation

The 288-pin unbuffered DIMMs seat in standard desktop slots without tools or drivers. Common issues include failing to seat modules fully until the retention clips click, mixing this kit with existing memory of different speeds or ranks, and not enabling the rated 3200 speed in the motherboard BIOS.

How it compares

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

Price $652.99
Pricier than about 55% 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 $5.10 per GB
Cheaper than about 75% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASRock Gaming Motherboard Compatible Series Memory
Model nameASRock DDR4 3200 MHz Non-ECC Unbuffered UDIMM
Part numberMD25600-328K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR4 UDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock
In the box
Included items128 GB (4 × 32 GB) DDR4 3200 MHz PC4-25600 2Rx8 1.2 V CL22 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

What motherboard is this 288-pin DDR4 UDIMM kit validated for?

The kit is listed as compatible with the ASRock TRX40 Taichi motherboard and carries the ASRock Gaming Motherboard Compatible Series designation.

Can I keep my existing DDR4 modules and add this 128GB kit alongside them?

This is a 4 x 32GB kit running at DDR4 3200 CL22 1.20V; mixing with other speeds, capacities or voltages may prevent the system from booting or force all modules to run at the slowest settings.

How can I confirm the kit is running at its rated DDR4 3200 CL22 after installation?

Enter the BIOS or use a tool such as CPU-Z and check that the memory frequency shows 3200 MT/s with CAS latency 22 and voltage at 1.20V.

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