The Qualcomm FastConnect 6900 Wi-Fi 6E Dual Band Simultaneous (DBS) WiFiCx Network Adapter is a wireless networking component typically found in laptops or desktop motherboards that support Wi-Fi 6E (the latest Wi-Fi standard). This adapter is responsible for enabling high-speed wireless internet connections, supporting both the 2.4 GHz and 5 GHz bands as well as the newly available 6 GHz band with Wi-Fi 6E.

Wi-Fi 6E is an extension of Wi-Fi 6 (802.11ax) that adds the 6 GHz frequency band, which helps reduce congestion, increase throughput, and improve performance, especially in environments with many connected devices.

The driver for the Qualcomm FastConnect 6900 Wi-Fi adapter ensures that the hardware works properly with your computer's operating system (in this case, Windows). Without the correct driver, your Wi-Fi adapter may not work, or it might have connectivity issues, poor speeds, or even fail to connect to networks.