LB1 High Performance Cooling Pad Cooling System Adjustable-Angle with 2 Fans for HP Sparkling Black 17.3" Pavilion g7-2247us Laptop PC with Intel Core i3-3110M Processor 6GB Memory 750GB Hard Drive and Windows 8 Two fans provides more air flow. High thermal heat dissipation prevents overheating. Great ergonomic shape for simple typing. Support low noise. Adjustable any Angle. Helps notebook to operate at full speed even while running high performance applications. Lightweight and compact - Perfect for portable user. Powered by 1 USB cable. Plug-and-play: no drivers or software needed. Rated Voltage: DC 5V. Speed: 700-1400 RPM. Noise Level: 15 dBA. Fan Life Expectancy: 40.000 hours. Bearing: Rifle. USB Port: 2. Cable Length: 24 inches. Dimensions: 14.5 x 10.5 x 1.3 - 2.3 inches.