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:swell the cross-ventilation,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: PL-2506 7*7 64PIN Power Supply:powered by USB directly Colour:blue,black,silver (OEM:option) Dimension:220.5*151.8*45.3MM Accessories:USB MILI DOUBLE A USB2.0 cable,USB DC cable,Disc(manual inside),screwdriver,one year guarantee for motherboard,spare screws.