Lenovo ThinkVision E28u-20 28" 4K HDR Monitor - Manual (Page 13)

Set Up the Display
This section describes how to set up the display.
Connecting and Powering on the Display
Note: Before performing this procedure, be sure to read the "Safety Matters" on
page iv.
1. Turn off the power to the computer and all connected devices, and then
unplug the computer's power cord.
2. Connect the cables as shown in the figure below.
Chapter 1. New Member Guide 1-6