Lenovo ThinkCentre M720 User Manual page 3

1
Optical drive eject/close button (optional)
3
Storage drive activity indicator
5
Power button
7
Microphone connector (optional)
9
Type-C USB 3.1 Gen 1 connector
11
USB 3.1 Gen 2 connectors (2)
13
Internal speaker
1 Optical drive eject/close button (optional)
Used to eject the tray of the optical drive. After you insert a disc into the tray, press the eject/close button to
close the tray.
2 Optical drive activity indicator (optional)
This indicator is on when the optical drive is in use.
3 Storage drive activity indicator
This indicator is on when the storage drive is in use.
4
Card reader slot (optional)
Used to read data from a supported memory card.
5 Power button
Used to turn on your computer. When you cannot shut down the computer from the operating system, press
and hold the power button for four or more seconds to turn off the computer.
6 Power indicator
This indicator is on when the computer is on.
7 Microphone connector
Used to connect a microphone to your computer. You can use the microphone to record sounds or interact
with the computer using speech-recognition software.
8 Headset connector
Used to connect a headset or headphones to your computer.
9 Type-C USB 3.1 Gen 1 connector
Used to connect a Type-C USB 3.1 compatible device.
10 USB 3.1 Gen 1 connectors
Used to connect a USB-compatible device. For optimal data transfer, connect a USB 3.1 Gen 1 device to a
USB 3.1 Gen 2 or USB 3.1 Gen 1 connector instead of a USB 2.0 connector.
11 USB 3.1 Gen 2 connectors
2
ThinkCentre M720 User Guide
2
Optical drive activity indicator (optional)
4
Card reader slot (optional)
6
Power indicator
8
Headset connector
10
USB 3.1 Gen 1 connectors (2)
12
Illuminated red dot