1. This 4K HDMI to USB 3.0 video capture card is portable, offers excellent picture quality, and has strong compatibility. It is easy to install and powerful, capable of capturing single-channel HDMI input signals. It is compatible with Windows 7, 8, 8.1, 10 and higher versions, Linux operating systems, and Mac operating systems. You can connect it to a computer or mobile device via USB 3.0 and it is backward compatible with USB 2.0. With common third-party applications, you can easily view, record, capture, and live stream videos. The HDMI video capture complies with UVC and UAC standards, making it convenient to use. 2. Main features: - Capture single-channel high-quality HDMI video signals. - Record videos up to 1080P/60Hz. The HDMI input supports 4K/60Hz with a 4K/60Hz bandwidth. - Compatible with UVC and YUV422 video outputs. - Support UAC and UVC protocols with a 48KHz PCM audio sampling rate. - No driver installation is required, and it is plug-and-play. - Compatible with Windows, Linux, and Mac OS. - USB 3.0 with a bandwidth of 300 - 350MB/s, backward compatible with USB 2.0. - Provide microphone and headphone jacks. - Automatically detect the video format and set the output size and frame rate. - Automatically convert audio to 48KHz PCM format. - Multiple capture devices can be used on one computer. - Clearer image quality with an RGB color range of 0 - 255 and low latency. - Support all third-party applications that comply with UVC and UAC protocols. 3. Interface description: - Signal indicator light: Lights up when the device is capturing images. - Power indicator light: Lights up when the device is connected to a computer via USB. - HDMI input: Connect to HDMI output devices such as cameras, game consoles, IPTV boxes, etc. - USB 3.0 output: Connect to the USB 3.0 input of a computer or laptop. 4. Package contents: - 1 video capture board - 1 USB 3.0 cable - 1 user manual