PdaNet Broadband Adapter is a Windows driver used to enable a device to share its mobile data connection (typically from a smartphone) with a computer via USB, effectively allowing the computer to use the mobile device as a modem for internet access. It's part of the PdaNet app, which is commonly used for tethering smartphones (Android or iPhone) to a computer to provide internet access, especially when no other form of internet connection is available (e.g., Wi-Fi or wired Ethernet).
PdaNet Broadband Adapter Windows driver: