Network security isolating device of external storage equipment

The utility model provides a network security isolating device of external storage equipment, including installing at computer mainframe shell, set up the bar groove of indent on the shell, bar inslot cooperation installation horizontal moving seat, be equipped with three USB interface on the inner wall in bar groove, the high difference of three USB interface, remove the medial surface of seat and set up three first groove, the vertical range in three first groove, every first groove is high together with a USB interface respectively, every first inslot cooperation sets up one and connects the sliding seat, it can follow first groove front and back necessarily to connect the sliding seat, USB line of installation on every joint sliding seat. The utility model discloses it prevents external device (USB flash disk or portable hard drive) misinsertion to have the two -stage. At first connect the female overhead of corresponding USB line with external device, then through adjusting the position of removing the s