1. This 4K HDMI to USB 3.0 video capture card is portable and highly compatible. It is easy to install, has powerful functions and can capture a single HDMI input signal. It is compatible with Windows 7, 8, 8.1, 10 or later, Linux OS and Mac OS. You can connect to a computer or mobile device via USB 3.0 and it is backward compatible with USB 2.0. With popular third - party applications, you can view, record, capture and broadcast. HDMI video capture complies with UVC and UAC standards, making it relatively easy to use. 2. Main functions: - Captures a single HDMI video signal. - Records video up to 1080P/60Hz, HDMI input supports 4K/60Hz, 4K/60Hz bandwidth. - Compatible with UVC and YUV422 video output. - Supports UAC & UVC protocols, 48KHz PCM audio sampling rate. - No need to install drivers, just plug and play. - Compatible with Windows, Linux and Mac OS. - USB 3.0, 300 - 350MB/s bandwidth, backward compatible with USB 2.0. - Includes microphone and headphone jacks. - Automatically detects video format and sets output size and frame rate. - Automatically converts audio to 48KHz PCM format. - Multiple capture devices can be used on one computer. - Has relatively clear image quality, RGB color range 0 - 255, low delay. - Supports all third - party applications that comply with UVC and UAC protocols. 3. Interface descriptions: - Signal indicator: Lights up when the device is capturing an image. - Power indicator: Lights up when the device is connected to a computer via USB. - HDMI input: Connects to HDMI output devices such as cameras, game consoles, IPTV boxes, etc. - USB 3.0 output: Connects to a USB 3.0 input on a computer or laptop. 4. Package contents: - 1x video capture board - 1x USB 3.0 cable - 1x user manual