There are three devices after insert LWB5+ USB dongle, what are these three devices?

Sterling-LWB5+

Answer

The LWB5+ in USB/USB mode is two separate devices behind an internal hub.  Each of the LWB5+ devices has an interface as below.

ID 04b4:bd30 Cypress Semiconductor Corp.     ###  HUB ###

ID 04b4:640c Cypress Semiconductor Corp.     ###  BT  ###

ID 04b4:bd29 Cypress Semiconductor Corp.     ###  WiFi ###