Do not connect any device to the Micro USB, OTG port of Raspberry Pi Zero 2W when use with X306, or the USB2.0 ports of X306 is not available to use.
[[File:IMG-4294-diagram-1.jpg|border|700px|none]]
'''<span style="color:red;">4 Pin header function description:</span>'''
{| class="wikitable"
! Pin !! Function
|-
! AL ON: Pin 1&2
| Short: Power always on, power button disabled;
|-
! AL ON: Pin 1&2
| Open: Power button Press to switch on, Hold 3 seconds to switch off
|-
! PWR SW: Pin 3&4
| for external 2-pin momentary switch
|}
"AL ON" enable, "PWR SW" will be disable.
"PWR SW" enable, "AL ON" will be disable.
==Features==