Interface: USB 3.0 USB connection, support plug and play USB service voltage: 4.5 v-5.5v No external power supply required Support multiple operating systems; Win98/ME/2000/XP/visa/win7/win8. Mac OS 9.x/ Linux 2.4 or above Solid-state storage, shockproof, anti-electromagnetic Write/protect place Persistent data storage The transmission write speed is fast/is read and read at high speed, no drive/pulse feed only needs to be turned on Hardware requirements: PC, notebook and mac with USB connection Storage life: more than 10 years; Class hood can be erased 100000 times