Lenovo S540 manual Enhancing your computer

Front view

1Security-lock slot: To protect your dock from theft, you can purchase a security cable lock, such as a Kensington-style cable lock, that fits this security-lock slot to lock your dock to a desk, table, or other non-permanent fixture.

2

USB 3.0 connector: Used to connect devices that are compatible with USB 3.0 and USB 2.0.

3Always-on USB connector: By default, the Always-on USB connector enables you to charge some mobile digital devices and smartphones no matter when your computer is in sleep mode, hibernation mode, or is off. For more information, refer to the documentation that comes with the dock.

4Combo audio connector: Used to connect headphones or a headset that has a 3.5-mm (0.14-inch),

4-pole plug.

5System-status indicator: The indicator on the illuminated ThinkPad logo functions the same as the ones on the computer. For details, see “Status indicators” on page 7.

6

Power button: The power button on the dock functions the same as the one on the computer.

Rear view

Chapter 7. Enhancing your computer 83