Dell P2723D 27" 1440p Monitor - Manual (Page 20)

20 │ About your monitor
Pin assignments
DisplayPort connector
Pin
number
20-pin side of the connected
signal cable
1 ML3 (n)
2 GND
3 ML3 (p)
4 ML2 (n)
5 GND
6 ML2 (p)
7 ML1 (n)
8 GND
9 ML1 (p)
10 ML0 (n)
11 GND
12 ML0 (p)
13 GND
14 GND
15 AUX (p)
16 GND
17 AUX (n)
18 Hot Plug Detect
19 Re-PWR
20 +3.3 V DP_PWR