Bi-Direction ***DP 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. (Two displays CANNOT display simultaneously,Press"Select"button to switch between two displays.)（While connecting to Source or Display,you must use the usb cable to power the splitter,or your display can not show anything).Do not use too long cable(total 3m) for connection between the switcher and your devices. | 16K DP 1.4 Splitter: Support 8K@120Hz,4K@240Hz,1080P@240Hz resolution, provide you with transfer rates up to 40Gbps and backward compatible with all previous DP standards. (You need connect standard DP 16K cable to enjoy visual effects.)Note:We recommend that the wires at both ends, that is, the sum of the input and output wires should not exceed 3 meters. If it exceeds 3 meters, the signal may be shielded. | 16K DP Switch: Support 8K@120Hz,4K@240Hz,1080P@240Hz resolution, provide you with transfer rates up to 40Gbps and backward compatible with all previous DP standards. (You need connect standard DP 16K cable to enjoy visual effects.)If the screen flickers during use, please try to plug it in again and use a shorter cable connection. | Plug and Play,This is not USB-C and HDMI Switcher/Splitter: External power required,the DP selector box is easy to setup and operate. Note:While using,press"select"Button to switch signal between two sources or displays,the indicator lights show the working status.Two displays can not display at the same time. | This is manual switch,not a automatically switch.12 Month worry-free *************************************************************, ************************************************************* Technical Support 24 hr dedicated email customer support