Type of product Cooling stand for notebook Connector type USB Operating system Windows 98/98SE/ME/2000/XP/Vista/7 Additional information Aluminium, slim, modern in shape cooling pad for notebooks Additional information Built-in very quiet 2 fans. Additional information Built-in 4-ports Hub USB 1.0 Additional information Heavy duty construction can afford any weight or pressure put-on. Additional information Power source supported easily by plug-and-play USB connection Additional information No need for any installation. Additional information Convenient, reliable and comfortable to carry. Additional information Compatible with any notebook computers up to 17" Additional information Air flow: 23,15CFM Additional information Fan speed: 2500rpm Additional information Noise level: 30dBA Additional information Power: DC 5V Additional information USB 1.0 HUB 4 ports Additional information Fan dimensions: 70x70x15mm Additional information Dimensions: 324x270x35mm Colour Black