* TF Card interface: MicroSD Card Slot (only supports CM4 module that without eMMC)
* 20Pin GPIO be reserved
* 1x fan interface: 4P-PH2.0 PWM Fan Control InterfaceInterface(Not support pwm fan speed adjustment)
* 1 x CSI camera FPC connectors (22-pin 0.5mm pitch cable)
* 1x Reboot Button