Dell OptiPlex 7070 Ultra Setup And Specifications page 19

11. Connect the power, network, keyboard, mouse, and display cables to the device and to the power outlet.
NOTE: To avoid any pinching or crimping of the cables while closing the stand cover, it is recommended that you
route the cables as indicated in the image.
12. Slide the back cover, along with the device, into the stand until you hear a click.
Set up your OptiPlex 7070 Ultra 19