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.