usb type a b c差異關於「USB connector Type」標籤，搜尋引擎有相關的訊息討論：
How to Identify Different Types Of USB Cablesventiontech.com › Technology OverviewUSB Connector & Cable Types: Everything You Need to Knowwww.cablematters.com › Blog › USB-C[PDF] Universal Serial Bus Cables and Connectors Class Documentwww.usb.org › sites › default › files