Alienware AW3821DW 37.5" 1600p 144 Hz Curved Gaming Monitor - Manual (Page 33)

Setting up the monitor | 33
7. Route the power cable through the cable-management slot on the stand
and then through the cable-management clip at the back of the display.
8. Connect the power cable to the monitor.
9. Route the required cables, such as USB 3.2 Gen1 (5 Gbps) upstream cable,
USB 3.2 Gen1 (5 Gbps) downstream cables, HDMI cable, and DisplayPort
cable through the cable-management slot on the stand.
NOTE: The USB 3.2 Gen1 (5 Gbps) cables are not shipped with your
display and sold separately.
10. Connect the required cables to the monitor.
NOTE: Dell monitors are designed to work optimally with Dell supplied
inbox cables. Dell does not guarantee the video quality and performance
when using non-Dell cables.
NOTE: Route each cable neatly so that the cables are organized before
the I/O cover is attached.