Control up to four computers using one keyboard, mouse, and 1080p display, with quad viewing, mouse roaming, 4-port USB 3.1 hub Sharing four views displayed on one screen with four Full HD HDMI devices or computers at the same time via one set of keyboard & mouse to create a powerful workstation 3 Display Modes Video screen layout included One View Mode, Quad View Mode and Quad View Cycled Mode Mouse Roaming Function Simple move the mouse to roam between the four Windows or mac systems make perfect operation experience Resolution Supports video resolution up to 1080p@60Hz Full HD for clear image. Compliant with HDMI 1.3 (HDCP 1.4) with 6.75Gbps video bandwidth Effortlessly Switch Easily switching between computer/device via the front panel push button or USB keyboard hotkeys make this Full HD Quad-View HDMI KVM MultiView Processor user-friendly to operate Supports audio lock function, easily lock the stereo audio to the selected source device, which can avoid switching to stereo audio when switching to another source devices Multiple Connectivity Port Comes with four USB 3.0 Type-B (Host), four HDMI video input ports, two USB 1.1 for keyboard & mouse connection, four USB 3.1 Gen 1 Type-A, one HDMI video output port, ten 3.5mm jack to connect a stereo speaker/earphone or microphone, Micro USB for firmware updated, and four switch buttons, and one FW DIP switch USB Data Transfer Delivers four SuperSpeed USB 3.1 Gen 1 Type-A ports up to 5Gbps data transfer rate on the front side for Flash drive, Printer, and other USB peripheral devices. Two High Speed USB 2.0 Type-A ports up to 480Mbps data transfer rate for independent HID keyboard and mouse Maximum Compatibility Supports Plug-n-play, no driver installation required and firmware upgradeable for new technology enhancement Metal Housing Design Protects the inside PCBA, also enhance the heat dissipation for better performance. Military-grade component and ESD protection for long service life