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Black single-tower CPU cooler with 120 mm 28 mm thick fan and 52 fins

Montech

Montech NX400 (B) CPU cooler 120mm 28mm fan 52 fins

SKU CH-9MRB-ZF9BR MPN NX400 (B)

Single-tower CPU cooler with a 28 mm thick 120 mm fan, 52 fins and four heat pipes for broad socket compatibility

  • Fan size120 × 120 × 28 mm
  • Supported CPU socketsLGA115X / 1200 / 1700 / 1851 / AM4 / AM5
  • Bearing designFluid Dynamic Bearing
  • Rotational speed2,000 RPM
  • Airflow rate85.09 Cubic Feet Per Minute
  • Operating noise34.17 dBA

Model Black

  • Cools efficiently with four vacuum-enhanced heat pipes
  • 52 uniquely shaped fins maximise surface area in a compact tower
  • 28 mm thick static-pressure fan pushes 85.09 CFM at 2000 RPM
  • Runs at 34.17 dBA thanks to vibration-dampening corner footpads
  • Fits Intel LGA 115X, 1200, 1700, 1851 and AMD AM4, AM5 sockets

Single-tower cooler with 28 mm fan

The Montech NX400 (B) is a single-tower CPU air cooler built around a 120 mm fan that is 28 mm thick. It uses four heat pipes and a 52-fin heat sink to dissipate heat from mainstream processors. The unit weighs 874 g and comes in a black finish with a polished top cover.

Limits of the 120 mm 28 mm fan design

The 28 mm fan thickness increases static pressure without widening the cooler footprint, yet the single 120 mm diameter caps maximum airflow at 85.09 CFM. Noise reaches 34.17 dBA at the 2000 RPM top speed, so the cooler suits builds that accept moderate sound for compact dimensions. The fluid-dynamic bearing and corner footpads reduce vibration but do not eliminate audible airflow at load.

Check socket brackets and case height clearance

Verify that your motherboard uses one of the supported sockets: LGA115X, 1200, 1700, 1851, AM4 or AM5. Ensure the case allows at least the cooler’s full height and that the 4-pin PWM header is reachable. The non-LED design adds no lighting cables, simplifying routing in tight layouts.

How it compares

Measured against everything we stock in CPU Coolers & Heatsink Fans, at today’s prices. Recalculated every night.

Price $19.99
Typical for this category: the median of 1,559 items is $19.99.

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Specifications

Product
Brand nameMontech
Part numberNX400 (B)
Product colorBlack
Performance
Rotational speed2,000 RPM
Airflow rate85.09 Cubic Feet Per Minute
Power
Power input connector4-Pin
Size & build
Fan size120 × 120 × 28 mm
Bearing designFluid Dynamic Bearing
Product weight874 g
Shipping weight0.33 kg
Package size188 × 155 × 122 mm
Compatibility
Supported CPU socketsLGA115X / 1200 / 1700 / 1851 / AM4 / AM5
Environment & compliance
Operating noise34.17 dBA
More details
LED lightingNon LED

Other versions of this model

3 more in the same range

Questions about this item

Should I pick the NX400 (B) with the 28 mm fan over a thinner version?

The 28 mm thick E28 fan moves 85.09 CFM at 2000 RPM while the 52-fin single tower keeps the footprint compact, giving stronger static pressure without a larger case cut-out.

What does the 85.09 CFM airflow figure mean once the cooler is mounted on a CPU?

At full speed the fan pushes 85.09 cubic feet of air per minute through the dense 52-fin array, so heat from the four heat pipes is exhausted quickly even under sustained loads.

The cooler uses a 4-pin PWM connector — what does that cap in practice?

The 4-pin connector lets the motherboard control the fan up to 2000 RPM and down to near-silent speeds, capping noise at 34.17 dBA while matching cooling to actual CPU temperature.

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