Option DescriptionIf USB port is disabled, the OS cannot see any device attached to this port.The options are:• Enable USB Boot Support• Enable External USB PortNOTE: Both the option is enabled by default.Dell Type-C dockconfigurationDoes not support this configurationThunderboltAdapterconfiguration:Allows you to configure the Thunderbolt™ adapter security settings within the Operating System.NOTE: Security Levels are not applicable or enforced in the Pre-boot environment.The options are:• Enable Thunderbolt™ Technology SupportThis option is enabled by default.• Enable Thunderbolt™ Adapter Boot Support• Enable Thunderbolt™ Adapter Pre-boot Modules• Security level - No Security• Security level - User AuthorizationThis option is enabled by default.• Security level - Secure Correct• Security level - Display Port onlyUSB PowerShare Allows you to charge external devices using the stored system battery power through the USB PowerShare port.This field can also configure the USB PowerShare feature behavior. By default, the Enable USB PowerShare isdisabled.Audio Allows you to enable or disable the integrated audio controller. By default, the Enable Audio option is selected.The options are:• Enable MicrophoneThis option is enabled by default.• Enable Internal Speaker This option is enabled by default.KeyboardIlluminationAllows you to choose the operating mode of the keyboard illumination feature. The keyboard brightness level canbe set from 0% to 100%. The options are:• Disabled• Dim• Bright This option is enabled by default.NOTE: The hotkey can be used to change the setting.KeyboardBacklight Timeouton ACAllows you to define the time-out value for the keyboard Backlight when an AC adapter is plugged into thesystem. The main keyboard illumination feature is not affected. Keyboard Illumination will continue to support thevarious illumination levels. This field has an effect when the backlight is enabled. The options are:• 5 seconds• 10 seconds This option is enabled by default.• 15 seconds• 30 seconds• 1 minute• 5 minute• 15 minute• neverKeyboardBacklight Time-out on BatteryAllows you to define the Keyboard Backlight Time-out dims out with Battery option. The main keyboardillumination feature is not affected. Keyboard Illumination will continue to support the various illumination levels.This field has an effect when the backlight is enabled. The options are:• 5 seconds• 10 seconds This option is enabled by default.• 15 seconds60 System setup