Asus E520 User Manual page 16

Rear panel
USB 2.0 port
The USB (Universal Serial Bus) port is compatible with USB
2.0 or USB 1.1 devices such as keyboards, pointing devices,
flash disk drives, external HDDs, speakers, cameras and
printers.
Serial (COM) connector
The 9-pin serial (COM) connector allows you to connect
devices that have serial ports such as mouse, modem, or
printers.
Parallel port
This parallel port allows you to connect your PC to external
devices that use parallel port connectors, such as printers
and scanners.
E520
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