Rear View
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Note: This graphic is an example. Some features may vary from those shown.

Rear view of the computer

 This is the rear of the computer. In the following table, click the hyperlink for more information.

Item Description
A Side panel thumbscrews (two)
B AC power connector
C Voltage switch

Before turning on the computer, ensure that the voltage switch is in the correct position for the power available.
In the United States, the power is supplied at a nominal 115 volts at 60 Hz. Set the voltage switch to 115 when operating the computer in the U.S. In other areas of the world, such as Europe, utility power is supplied at 230 volts at 50 Hz. Set the voltage switch to 230 when operating the computer in these areas.
D Certificate of Authenticity (COA) label. The COA label provides the Microsoft® identification number for the operating system originally loaded on the hard drive.
E Exhaust fan vent
F Ports
G Add-in card retention latch
H Four add-in card slots.

Note: The number, types, and locations of installed cards may vary from those shown.