Sunbeam Rheobus Extreme 6 Channel 5.25" Bay Fan Controller (Black) 6 separate adjustable channels (Up to 30W per channel current draw) Great for adjusting fan speed and light intensity Knob light brightness controlled by knob position Includes (2) 3pin to 4pin adapter cables, (2) 3pin extension cables, (2) 3pin extension cables with RPM output for motherboard, and mounting screws Output Voltage: 0-12V (+/- 10%)