| Abbreviation | Definition |
|---|---|
| UHCI | Universal Host Controller Interface |
| UMA | User-Mode Audio |
| UMDF | User Mode Driver Framework |
| UMV | User Mode Bus |
| UPD | Universal Print Driver |
| UPnP | Universal Plug aNd Play |
| URB | Universal Request Block |
| USB-IF | Universal Serial Bus Implementers Forum |
| USBTMC | USB Test & Measurement Class |
| USN | Unique Service Name |
| UUID | Universally Unique IDentifier |
| UVC | USB (Universal Serial Bus) Video Class |
| UWB | UltraWide Band |
| UXGA | Ultra-eXtended Graphics Array |
| VA | Video Acceleration |
| VAFC | VESA Advanced Feature Connector |
| VBE | VESA BIOS Extension |
| VBI | Vertical Blanking Interval |
| VC | Virtual Channel |
| VCP | Virtual Control Program |