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Rear view
1
Status indicators
Note: For the description of each indicator, see Chapter 6 “Status indicators” on page 47
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2
Smart Card slot (for some models)
3
Wireless radio switch
4
IEEE 1394 connector
5
USB/eSATA combo connector (for some models)
6
Universal serial bus (USB) connectors
7
External monitor connector
8
DisplayPort
9
AC power connector
10
RJ-11 (modem) connector (for some models)
11
USB connector
104 ThinkPad T520, T520i, and W520 Hardware Maintenance Manual