This capture card can capture HDMI video and HDMI audio at the same time, and it can transmit audio and video signals to a computer and smart phone for preview and storage. And it is suitable for high-definition capture, teaching recording, imaging, etc. How to connect? 1.Micro USB power cable connects to Micro USB port to supply power 2.Input port: input the stream video through the HDMI "Input" port. 3.Output port: connect the monitor through the HDMI "Output" port to preview the stream video in real time. 4.Connect it to the computer through the USB 2.0 port, use "VLC / OBS / Amcap, etc" to edit the video at the same time. Features: - Support HDMI loop out. - Support input max resolution 4K. - Support output max resolution 1080P. - Support AWG26 HDMI standard cable: input up to 15 meters, (1080P and below resolution). - Support most acquisition software, such as for VLC, for OBS, for Amcap, etc. - Support for Windows, for Android, for MacOS. - Conform to USB Video and UVC standard. - Conform to USB Audio UAC standard. - Compact and portable.