Dell U4021QW User Manual page 22

Universal Serial Bus (USB)
This section gives you information about the USB ports available on your monitor.
NOTE: Up to 2 A on USB downstream port (port with
with BC 1.2 compliance devices; up to 1.0 A on the other 2 USB downstream
ports; Up to 3 A on USB downstream port (port with
compliance devices.
Your computer has the following USB ports:
• 5 downstream - 3 at bottom, 2 at quick access
• 1 upstream
Power Charging Port - the ports with
charging capability if the device is BC 1.2 compatible.The USB Type-C downstream
port with
5V/3A compatible.
NOTE: The monitor's USB ports work only when the monitor is on or in the
standby mode. In standby mode, if the USB cable (Type-C to Type-C) is
plugged in, the USB ports can work normally. Otherwise, follow the OSD
setting of USB, if the setting is "On in Standby Mode" then USB work normally,
otherwise USB is disabled. If you turn off the monitor and then turn it on, the
attached peripherals may take a few seconds to resume normal functionality.
Transfer speed
Super Speed USB 3.2 Gen2
Super Speed USB 3.2 Gen1
Hi-Speed
Full speed
22 | About your monitor
icon supports fast current charging capability if the device is
Data rate
10 Gbps
5 Gbps
480 Mbps 2.5 W
12 Mbps
battery icon supports fast current
Maximum power consumption (each port)
4.5 W
4.5 W
2.5 W
battery icon)
icon) with 5 V/3 A