On the Primo product page, what does it mean "USB Audio Input Support"? Monica Ferreira | Volumio March 23, 2021 11:55 USB Audio Input Support means that you can connect for example a USB turntable, an Mp3 player, or an iPod. Related articles Which PSU includes with Primo? How does Volumio Primo work? Can I connect external storage directly to Volumio Primo? Read Volumio Quick Start Guide Is it possible to remotely turn on and off Primo? Does it have an auto on/off function?