* MousePad Size：280mm X 230mm X 6mm * 1.5 transparent aluminum platinum USB of Connect line * AAS soleplate * the bottom Pad defends smooth * 4 port's USB Hub * The USB1.1 connects * Cool and blue light * Import the black and fine front-panel of PU * 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)