Android Debug Bridge Cable

There is no native ADB cable support by spacedesk. However, advanced users can still use ADB port forwarding.
This requires Android SDK platform tools downloaded on the primary machine.
On Windows, open command prompt on the primary machine then change the directory to your android SDK platform tools folder. Type this command: enter “adb reverse tcp:28252 tcp:28252”
On Android, go to spacedesk Viewer App, uncheck the LAN/WiFi discovery box below to disabled the automatic network discovery of the viewer app.
Then click the + button and enter the IP address 127.0.0.1 to connect.

Note: “adb reverse” only works on devices with Android 5.0-above version.