![HP Notebooks, Desktops, Mobile Workstations PCs - Device Manager Displays an Exclamation Mark (Yellow Bang) on UCM-UCSI ACPI Device After Installing KB4512534 | HP® Customer Support HP Notebooks, Desktops, Mobile Workstations PCs - Device Manager Displays an Exclamation Mark (Yellow Bang) on UCM-UCSI ACPI Device After Installing KB4512534 | HP® Customer Support](https://support.hp.com/doc-images/736/c06453493.png)
HP Notebooks, Desktops, Mobile Workstations PCs - Device Manager Displays an Exclamation Mark (Yellow Bang) on UCM-UCSI ACPI Device After Installing KB4512534 | HP® Customer Support
Introducing USB Type-C Connector System Software Interface (UCSI) Class Extension - Microsoft Tech Community
![USB-C™ and Power Delivery Architecture in Windows 10 .USB Developer Days –October 24-25, 2017 - [PDF Document] USB-C™ and Power Delivery Architecture in Windows 10 .USB Developer Days –October 24-25, 2017 - [PDF Document]](https://demo.vdocuments.net/img/378x509/reader019/reader/2020032519/5b16dfec7f8b9a546d8e7556/r-2.jpg)
USB-C™ and Power Delivery Architecture in Windows 10 .USB Developer Days –October 24-25, 2017 - [PDF Document]
Lenovo auf Twitter: "@GillCabrit I see. Your unit uses a Conexant driver. The image above is just an example. Could you please try to follow the steps in this article https://t.co/QEvSsqI3I8 to
![USB Connector Managers>UCM-UCSI ACPI Device error 43 in NUC11PAHi7 and USB-C doesn't work - Intel Communities USB Connector Managers>UCM-UCSI ACPI Device error 43 in NUC11PAHi7 and USB-C doesn't work - Intel Communities](https://community.intel.com/cipcp26785/attachments/cipcp26785/nucs/86877/2/Screenshot%202021-11-21%20153924.png)
USB Connector Managers>UCM-UCSI ACPI Device error 43 in NUC11PAHi7 and USB-C doesn't work - Intel Communities
![quot-UCM-UCSI -ACPI-Device-quot-driver-keeps-appearing-and-disappearing-from-the-Device- Manager - English Community - LENOVO COMMUNITY quot-UCM-UCSI -ACPI-Device-quot-driver-keeps-appearing-and-disappearing-from-the-Device- Manager - English Community - LENOVO COMMUNITY](https://forumscdn.lenovo.com/old_attach/166394iECA4B7735EE590CC.jpg)