Https://www.futureelectronics.com/resources/featured-products/cui-inc-external-ac-dc-power-supplies . In this Power 101 video from CUI, we explain how USB Power Delivery (USB PD) works and its benefits and uses in relation to power adapters. https://youtu.be/PEm-UWIFqNg https://youtu.be/PEm-UWIFqNg