The video capture can capture both HDMI video and HDMI audio.Sending audio and video signals to computers and smart phones for preview and storage. Input (HDMI) resolution 3840×2160@30Hz, output (USB) resolution 1920×1080@30Hz Easily connect your DSLR, camcorder, or action Cam to your PC or Mac Plug and play - NO driver, Low latency for game recording, meeting recording, live streaming. Compatible with Windows,Mac OS X Suitable for high definition acquisition, teaching recording, medical imaging, etc. Record videos directly to the hard disk without time delay