External usb hard drive external thunderbolt hard drive memory capacity 2 tb series lacie rugged bus sata form factor 25 inch rpms 5 400 rpm buffer 64 mb encryption 256bit aes power supplies via usb port via thunderbolt port features built in thunderbolt cable integrated usb cable special feature shockproof colours orange silver dimensions 89 x 140 x 24 mm weight 350 g