The HDMI/DisplayPort Dual-head KVM (Keyboard, Video, Mouse) extender can transmit 4K@30Hz video over SPF Fiber. It enables you to operate the remote computer, server, or other IT device up to 10 kilometers away from the source device. Furthermore, you can view the output video of the above remote source devices via the HDMI/DisplayPort of Dual-head KVM Extenderâs local loopback port.