HDD Size: 2. 5"IDE HDD Material: Aluminum alloy & Plastic Technology: Stripe and right-angle, Bright surface, Bright Word" Storage Capacity: 20GB-120G PC Interface: USB 2. 0(mini) Transmitting Speed: UP to 480Mbps Plug & Play Chipset: CS8818 / GL811E LED Display Operating System: Win98/SE/ME/2000/XP Mac OS 8. 6(or above) Color: Silver/Black/blue