* MousePad Size：296mm x 249mm x 12mm * 1.5 transparent aluminum platinum USB of Connect line * Pc soleplate * the bottom Pad defends smooth * 2 port's USB Hub * The USB2.0 connects * Cool and blue light * Usb Card Reader and Function Sound * One upstream port(USB-A male) and four downstream port(USB-A emale) as standard * LED indicator to check uplind /downport communication & OCP status easily * Each downstream port with OCD (Over Current Detection and OCP(Over Current Protection)