Lenovo ThinkStation P300 - Manual (Page 14)

Locating connectors, controls, and indicators on the front of your
computer
The following illustration shows the locations of the connectors, controls, and indicators on the front of your
computer.
Figure 1. Front connector, control, and indicator locations
1 Optical drive eject/close button 2 USB 3.0 connectors (2)
3 Hard disk drive activity indicator 4 Power indicator
5 Power button 6 Microphone connector
7 Headphone connector 8 Card-reader slot (available on some models)
2 ThinkStation P300 User Guide