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X503U Reference Manual V3.2
2.10 USB3.0 connectors
Function
USB3.0 connectors
marking
USB3.0
Type
Dual layer USB3.0 type-a interface
2.11 OTG-USB2.0
Function
USB2.0 connectors
marking
USB-OTG
Type
USB 2.0 MicroType-B