1.inner hard drive: A serial port / 2.5 inches / 5400 RPM / 8M cache 2.HDD case material: High temperature resistant plastic( ABS plastic) 3.colour: white/ black 4.product size: 119mm* 75mm* 12mm ie: 4.69" * 2.95" * 0.47" 5.accessories: external HDD+ USB cables+ English version instructions manual 6.Capacity explanation: 500GB hard drive, actually use capacity is 465GB.( this is the normal knowledge)