Versatile Control: This fan controller allows you to precisely manage the speed of PWM (Pulse Width Modulation) fans for optimal cooling performance. Max.36W, Control 4x 3/4 pin fan Easy Installation: Seamlessly integrates with existing fan setups, providing convenient speed adjustments without complex modifications. Durable Construction: Crafted with high-quality materials to withstand prolonged use and ensure reliable operation. Multi-Purpose: Suitable for various applications, including computer systems, HVAC units, and DIY projects requiring precise fan control.