20 Setting Up and Using Your Computer
Back I/O Connectors
6 card slots Access connectors for any installed PCI or PCI Express cards.
NOTE: Some connector slots support full-length cards.
7 IEEE 1394 Use the IEEE 1394 connector for high-speed data devices 
such as digital video cameras and external storage devices.
8 network adapter 
connector
 
NOTICE: Do not plug a telephone cable into the network 
connector.
Use the network adapter connector to attach your computer 
to a network or broadband device. 
1 IEEE 1394 Use the IEEE 1394 connector for high-speed data devices 
such as digital video cameras and external storage devices.
2 eSATA Use this connector to connect to external SATA storage 
devices.
3 S/PDIF (RCA) Connects to external digital stereo speakers.
4 USB connectors 
(4)(rear quad)
Use the back, rear-quad USB connectors for devices that 
typically remain connected, such as printers and keyboards.
NOTE: It is recommended that you use the front USB 
connectors for devices that you connect occasionally, such as 
joysticks, cameras, or bootable USB devices.
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