HDMI+Displayport Dual Monitor KVM SwitchThis Dual Monitor KVM switch 2 monitors 2 computers helps to control 2 computers or laptops by 1 set of wired or wireless keyboard mouse,share 4 USB 3.0 devices and 2 monitors(extended mode or copy display mode). Note: The extended mode can output two different screens, and the copy mode can output two identical screens.Press 'Window+P',a small window will pop up, in which to choose 'Copy' Mode or 'Extend' Mode. Maximum Support 4K@60Hz/2K@120HzDual Monitor KVM switch HDMI+Displayport support resolution up to 4K@60Hz,2K@120Hz.KVM switch 2 monitors 2 computers aslo support input terminal to connect 2 computers with different resolutions, e.g. one is 4K@60Hz, the other is 4K@30Hz, 1440P@60HZ, 3D,1080P@60HZ or lower resolution.Note:Final resolution is also subject to graphic cards, monitors, cables and adapters and how those work together.! Dual Monitor KVM Switches with 4 USB 3.0 PortsDual monitor HDMI+Displayport KVM switch with 4 USB 3.