General device type hard drive external portable capacity 1tb form factor 25 interface usb 30 features shock resistant water resistant dust proof wrap around usb cable apple time machine compatible width 99 cm depth 132 cm height 22 cm weight 220 g expansion amp connectivity interfaces 1 x usb 30 power power source usb bus software amp system requirements os required linux kernel 26 or later apple macos x 106 or later mic