LB1 High Performance New Toshiba KIRAbook 2015 Ultrabook Laptop Super Cooling Fan Cooling System Cooling Pads Portable with Single Large Fan (Black) Large Single fan provides more air flow.Stylish-Slim-Durable-Lightweight and compact. High thermal heat dissipation prevents overheating .Foldable to compact size - Perfect for portable user.Great ergonomic shape for simple typing. Helps notebook to operate at full speed even while running high performance applications. Support low noise. Powered by 1 USB cable.Plug-and-play: no drivers or software needed.Rated Voltage: DC 5V.