(Bi-Direction DP Switch:(not HDMI Switch,)The DisplayPort switcher allow you to connect two DP source to one DP display or connect one DisplayPort source to toggle between two displays. (IMPORTANT NOTE:Two displays CANNOT display simultaneously)（While connecting to Source or Display,you must use the usb cable to power the splitter,If you do not power the splitter,your source or external display can not show anything).
eBay