Connect two 4 pin pwm fans to a single motherboard fan power connector the fan4split12 fan power splitter cable enables you to connect two 4 pin pwm fans to a single motherboard power connector which allows you to optimize your computer cooling capability providing a flexible way to position computer case fans as needed this 4 pin fan power splitter cable offers a connection length of 1ft eliminating the need to strain the connection between the computer power connector and the fans