Dell U4021QW User Manual page 23

USB upstream port
Pin number Signal name
1 VBUS
2 D-
3 D+
4 GND
5 StdB_SSTX-
6 StdB_SSTX+
7 GND_DRAIN
8 StdB_SSRX-
9 StdB_SSRX+
Shell Shield
USB downstream port
Pin number Signal name
1 VBUS
2 D-
3 D+
4 GND
5 StdA_SSRX-
6 StdA_SSRX+
7 GND_DRAIN
8 StdA_SSTX-
9 StdA_SSTX+
Shell Shield
About your monitor | 23