Dell OptiPlex 9020 (Mid 2013) - Manual (Page 6)

Quick Setup
WARNING: Before you begin any of the procedures in this section, read the safety
information that shipped with your computer. For additional best practices
information, see www.dell.com/regulatory_compliance
NOTE: Some devices may not be included if you did not order them.
1. Connect the monitor using only one of the following cables:
Figure 6. VGA Adapter
Figure 7. DisplayPort Cable
Figure 8. VGA To DisplayPort Adapter
2. Connect the keyboard or mouse (optional).
Figure 9. USB Connection
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