Bi-directional DP-Switch: The switch allows you to connect two DP sources to one DP screen or connect one source to switch between two screens. (Note: Two screens cannot be displayed simultaneously) When connecting to a source or screen, you must use a USB cable to power the splitter. If you don't power the splitter, your source or screen may not display anything. 8K DP 1.4 Splitter: Supports 8K@30Hz, 4K@120Hz, 1080P@240Hz resolution, offering transfer speeds up to 32.4 Gbps and backward compatibility with all previous DP standards. (You need to connect a standard DP 1.4 cable to enjoy visual effects.) Note: We recommend that the cables in both ends, i.e., the sum of input and output cables, do not exceed 3 meters. If it exceeds 3 meters, the signal may be affected. 8K DP 1.4 Switch: Supports 8K@30Hz, 4K@120Hz, 1080P@240Hz resolution, offering transfer speeds up to 32.4 Gbps and backward compatibility with all previous DP standards. (You need to connect a standard DP 1.4 cable to enjoy visual effects.) Plug and Play: External power supply required, DP selector is easy to install and use. Note: During use, press the "Select" button to switch the signal between two sources or screens, indicator lights show working status.