Laptop cooling pad 1)laptop cooling pad with three fans, usb 2.0 2)item dimension: 29*24*5cm. 3)weight: 431g. 4)dc: 5v. 5)current: 530ma. 6)noise level: 25db maximum. 7)air flow: 25cfm. 8)fan dimension: 60* 60*15mm. 9)fan speed: 2, 500rpm maximum. Neutral package