https://wccftech.com/thermaltake-toughfan-14-fan-comes-in-a-single-pack-or-a-2-fan-pack/

Thermaltake has announced that the TOUGHFAN 14 fan is available in either a single pack or a two-fan pack. This fan was originally built to be used with Thermaltake's AIO CPU coolers as they do not have a high speed of up to 2,000 RPM and offer a high static pressure. These fans are currently available through Thermaltake's website, with the two-pack having a price tag of $44.99 and the single pack featuring a price of $24.99.

The TOUGHFAN 14 is PWM controlled, allowing the motherboard to report the fan's speed and allow the user to adjust the fan curve if needed. The design of the TOUGHFAN 14 is a simple gray and black color scheme, with the anti-vibration pads being a light grey color and the fan blades being a black color scheme. These anti-vibration mounting pads allow for the higher speed not to correlate to this fan's more noise. This fan's design features the Thermaltake logo on the fan's hub; this fan offers no RGB lighting and instead focuses on offering the highest airflow possible.