Description: <br>This is a worthy speed controller for computer fan. With 4 adjustable channels, it can control 4 fans of the computer at the same time, and efficiently protect your computer from heating. Working without noise, you can continue to work on your computer easily and safely. <br> <br>Features: <br>Four channels for speed and temperature controlling, capable to manage 4 fans at the same time or adjust the individual fan speed. <br>Effectively for heat reducing, maintain the proper temperature to keep all parts of the computer running well. <br>Reduce noise, work quietly and do not disturb you while you are working and studying on the computer. <br>3.5'' floppy drive interface, easy to install. <br>With blue LED which displays the working state of the speed controller, simple and elegant. <br> <br> <br>Specifications: <br>Color: Black <br>Output Voltage: DC 12V <br>Output Power: 8W for Each Channel <br>Voltage Range: 5 - 12V <br>Power Indicator: LED Indicator (Blue Light) <br>Length of Cable: Approx. 40-43cm/15.75-16.93inch <br>Installation Location: Floppy Drive <br>Interface: 4P Male Head + Female Head <br>Fan interface: 3Pin + 4Pin <br>Controllable Fans: Max. 4 Sets <br>Size: Approx. 10 * 10 * 2.1cm <br>Package Weight: 150g <br> <br>Package List: <br>1 * Fan Speed Controller for PC <br>1 * User Manual1、Four channels for speed and temperature controlling, capable to manage 4 fans at the same time or adjust the individual fan speed. <br>2、Effectively for heat reducing, maintain the proper temperature to keep all parts of the computer running well. <br>3、Reduce noise, work quietly and do not disturb you while you are working and studying on the computer. <br>4、3.5" floppy drive interface, easy to install. <br>5、With blue LED which displays the working state of the speed controller, simple and elegant.