1x3 DisplayPort-compatible Splitter Support 1 source to 3 monitors output Supports DP SST (Mirror) and MST (Extended) mode MST mode of Apple system can only extend one screen (limited by iOS System) Splitter supports 8K when used as a single port and 4K when 3 ports are used simultaneously Make sure to use USB cable to power the Splitter.(The product does not include a power adapter)