4 Port USB HDMI KVM SwitchModel: DK304Instructions:The HDMI KVM Switch with built-in sound effect function. It is specially designed for users of PC and Mac with built-in HDMI interfaces and loyal fans of SOHO environment and technology,Website:http://www.szaikexin.com, which is well-suited for HDMI. This unique type of KVM switch can easily control four computers, which have built-in HDMI interfaces, via a HDMI display and either a PC or Mac keyboard and mouse. Image distortion due to conversion of analog and digital signals will not be a problem anymore.This KVM switch controls multiple PCs from one keyboard, mouse and HDMI monitor.Features:1. One USB or PS/2 console controls 4 HDMI-interface computers�2. Switch model: via front panel push buttons and hot keys3.HDMI digital monitor support-fully compliant with HDMI 1.3a;also HDCP compliant4. Superior video quality-supports 480i,480p,720p,1080i,and 1080p(HDTV)/1920X1200(DVI)5. Support Hot plug