Apple AirPort Extreme 802.11n (4th Generation) - Manual (Page 7)

Chapter 1 Getting Started 7
 Three 10/100/1000Base-T Gigabit Ethernet Local Area Network (LAN) ports (G ) for
connecting Ethernet devices, such as printers or computers, or for connecting to an
existing Ethernet network
 One USB port (d ) for connecting a compatible USB printer, hard disk, or hub for
connecting several devices
Next to the ports is a reset button, which is used for troubleshooting your
AirPort Extreme. The status light on the front of the AirPort Extreme shows the
current status.
Status light Internet WAN port
AC adapter
Power port USB port
Ethernet ports Reset button
Security slot