* J17 is a standard USB Host 2.0 Type A connector
[[File:AXEL Lite-EVB-USB Host-connector.png|thumb|center| 500px|USB Host connector]]
* J18 is a micro-AB type receptacle for a USB OTG connection: this interface can operate in Host mode and Device (peripheral) mode
[[File:AXEL Lite-EVB-USB OTG-connector.png|thumb|center| 500px|USB OTG connector]]
===Signals ===