Welcome to our store！</br> 1、4 groups of fans can be connected at the same time, and the four groups of fans can adjust speed at the same time 2、Humanized noise reduction design and PWM line speed regulation can effectively reduce fan noise 3、The cooling fan controller is applicable to the front panel of 4 groups of fan governors with 3.5inch floppy drive 4、Specially designed for people who love PC. Output voltage 5V to 12V. Power reached 8W 5、Four groups of fans can be controlled at the same time, which can be adjusted freely and bid farewell to noise problems <p class="wang-edit-text"><p class="wang-edit-text"><p class="wang-edit-text"> Item Type:&nbsp;Cooling Fan Controller Model:&nbsp;33C04-RTK Material: ABS Fan Interface: 3Pin Interface , 4Pin Interface Power Supply Interface: Big 4Pin Male , Female Output Voltage: 5V-12V Power: 8W Installation Position: Chassis Floppy Drive Controllable Fan: 4 Groups of Fans Can Be Controlled at the Same Time <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Controller Assembly&nbsp; 4 x Screw Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>