Usb type micro usb to usb type a connection interface usb 3.1 gen 1 capacity 2 tb storage media 2.5′′ hdd operating temperature 5°c (41°f) ~ 55°c (131°f) operating voltage 5v certificate ce/fcc/bsmi/kc/rcm/eac/ukca operating system microsoft windows 7 or later, macos 10.10 or later