10Rear ComponentsRef Component Description See Also ExpansionConnectorConnect to a proprietary snap-on modulesuch as:- Second battery pack- RFID and smart card reader- Magnetic stripe card and smart card reader SIM Card Cover Inside is the SIM card slot (optional). Flash (optional) Provides extra light when taking pictures. Camera Lens(optional)Allows you to use the camera function.When the camera lens is in use, theindicator beside it lights up.P. 49 Stylus/Digitizer penServes as the input device by tapping on thetouchscreen to make selections and enterinformation.P. 15 Battery Pack Supplies power to your computer whenexternal power is not connected.P. 27
