Apple iMac (Early 2009) - Manual (Page 25)

Chapter 2 Life with Your iMac 25
£ Mini DisplayPort
Connect a display that uses a Mini DisplayPort connector. Adapters are available
at www.apple.com/store.
G Ethernet port (10/100/1000Base-T)
Connect to a high-speed 10/100/1000Base-T Ethernet network, connect a DSL or
cable modem, or connect to another computer and transfer files. The Ethernet
port automatically detects other Ethernet devices.
d Four high-speed USB (Universal Serial Bus) 2.0 ports
Connect an iPod, iPhone, mouse, keyboard, printer, disk drive, digital camera,
joystick, external USB modem, and more. You can also connect USB 1.1 devices.
The Apple Keyboard has two additional USB 2.0 ports.
, Audio in/optical digital audio in port
Connect an external powered microphone or digital audio equipment. This port
is also a S/PDIF stereo 3.5 mini-phono jack.
f Headphone out/optical digital audio out port
Connect headphones, external powered speakers, or digital audio equipment.
This port is also a S/PDIF stereo 3.5 mini-phono jack.
H One FireWire 800 port
Connect high-speed external devices, such as digital video cameras and storage
devices. The port provides up to 7 watts of power.