Technological Parameter:Mili/normal USB2.0,easy installed,hot plug & play,extra drivers are not necessary for Win2000,WinXP,protect the circuit in an intelligent design,transfer speed:up to 480Mbps Technological Feature:The appearance in a special design,bardian blue shadow easy to strat-up in low voltage Range of Application:support 120GB 2.5'HDD,senior professional user desktop,laptop. Material:aluminum alloy+ABS plastic board Technical Scheme:NEC/UPD720133 Power Supply:powered by USB bus directly spare eletricity socket Colour:blue,black,silver (OEM:option) Packing Dimension:220.5*151.8*45.3MM Accessories:USB MILI DOUBLE A USB2.0 able,USB DC cable,Disc(manual inside) screwdriver,one year guarantee for motherboard,spare screws