Using the Epiphan AV.io SDI+ is a breeze. First, connect it to your SDI source using the BNC - style SDI connector and to your computer via the USB 3.0 B - Type connector. There's no need to install any drivers, so it's plug - and - play. You can start capturing 1080p video right away. When it comes to audio, you can choose to use HDMI, 3.5 mm, or both for input. Just make sure your device's OS is Windows 10 or higher, Mac OS X 10.10 or higher, or Linux kernel 3.5.0 or higher. As for maintenance, keep it in a clean and dry place. Avoid exposing it to extreme temperatures or physical shocks. If the LED indicates any abnormal status, check the connections and make sure the power supply is stable. That's all you need to know to make the most of this great video capture device.