Which PSU includes with Primo? Monica Ferreira | Volumio March 23, 2021 11:53 In the Primo box, you have 5V 3A PSU (which is a high-quality switching one) Related articles Can I connect external storage directly to Volumio Primo? How does Volumio Primo work? How to use the analog and digital audio outputs of Primo? Shipping & Delivery On the Primo product page, what does it mean "USB Audio Input Support"?