Dell P1917S 19" 5:4 IPS Monitor - Manual (Page 26)

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| About your monitor
USB 3.0 downstream connector
Pin Number 9-pin Side of the Connector
1 VCC
2 D-
3 D+
4 GND
5 SSRX-
6 SSRX+
7 GND
8 SSTX-
9 SSTX+
USB 2.0 Downstream Connector
Pin Number 4-pin Side of the Connector
1 VCC
2 DMD
3 DPD
4 GND