1、One color fan cooling system heat away from the motebooks and prevents the  CPU from overheating during use 
2、Easy go.No power adapter necessary;conveniently powerd throug USB port 
3、Product Size:290*240*45mm  Carton Size:310*260*50mm 
4、Great ergonomic shape for easy type 
5、Support Low noise 
6、True plug and play for USB derice like mouse,keyboard,CardReader…..etc.