Extend dvi d or hdmi usb and audio signals up to 500m with full usb 20 compatibility and speedr r a cost effective and secure way to convert existing standard kvm units into remotely accessible hardware extending your hardware capabilitiesr dvi and audio support over long distance 500m allows for a high resolution experience as if you were on siter real high speed usb 20 ports allow for hard drives webcams usb hubs and any other peripherals to work remotelyr r extend dvi d or hdmi