Cooler Master introduced today its latest case fan series - the LED On/Off Fan, which allows you to independently shut down the LED lights while the fan keeps spinning. The Cooler Master LED On/Off Fan series support the standard 3-pin fan headers and, most importantly, adds an extra LED on/off connector, which attaches to the LED control panel. With an easy installation of the control panel in any free rear side slot on the chassis, PC users are able to turn on or shut off their LEDs manually whenever they want. One control panel is designed to connect and control up to 3 LED on/off fans. In addition the LED on/off fans also offer a silent cooling environment at 20 dBA, brighter 4 blue LEDs and full RoHS compliance. The Cooler Master LED On/Off Fan series are available now in 80mm & 120mm versions, with optional control panel bundles available as well.