Interface definition Machine interface definition ROC-RK3506B-CC V1.0 The interfaces used mainly include: 1 x Recovery key 1 x Boot key 1 x Reset key 2 x LED 1 x RTC Battery Holder 1 x DEBUG serial port (UART0) 1 x USB2.0 OTG(Type-C) 1 x MIPI-DSI 1 x TF Card(Reused with EMMC interface, not attached by default) 1 x USB2.0 1 x WIFI(Only supports 2.4G band, not 5G band) 2 x RJ45(Supports 100Mbps) 1 × 3.5mm headphone jack The details are as follows: