The 4K Displayport & USB 2 x 1 way KVM Switch allows you to share an HDTV or display, USB keyboard & mouse with audio and microphone between two USB and Dual head DP computers. It comes with two extra USB 2.0 ports with over-current detection and protection for additional device connections. It supports resolutions of up to 3840*2160@30Hz with video link rate up to 21.6Gbps, Dolby True HD and DTS HD Master Audio formats. Also, it features metal housing for better RF shielding and allows user to switch between devices via front push button or hotkey. The 4K Displayport & USB 2 x 1 way KVM Switch is DP v1.2 compliant, CE, FCC regulatory approved and RoHS-compliant. It is fully compatible with a wide variety of Windows and Mac OS operating