Microtower
1Mouse
connector
8
Microphone
connector
2Keyboard
connector
9
Audio
line
out
connector
3USB
connectors
10Audio
line
in
connector
4Serial
connector
11AGP
slot
5Parallel
connector
12PCI
slots
6Serial
connector
13Power
connector
7Ethernet
connector
See
“Connector

descriptions.”

Note:
Some
connectors
on
the
rear
of
the
computer
are
color-coded
to
help
you
to
determine
where
to
connect
the
cables
on
your
computer.
Connector
descriptions
Connector
Description
Mouse
connector
Used
to
attach
a
mouse,
trackball,
or
other
pointing
device
that
uses
a
standard
mouse
connector.
Keyboard
connector
Used
to
attach
a
keyboard
that
uses
a
standard
keyboard
connector.
USB
connectors
Used
to
attach
a
device
that
requires
a
Universal
Serial
Bus
(USB)
connection,
such
as
a
USB
scanner
or
USB
printer.
If
you
have
more
than
four
USB
devices,
you
can
purchase
a
USB
hub,
which
you
can
use
to
connect
additional
USB
devices.
Chapter
5.
External
connectors
25