Rear View
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Rear view of the computer This is the rear of the computer. Refer to the following table for more information.

Item Description
A Side panel release latch
B Shipping thumbscrew
C Power supply voltage switch
Note: Before turning on the computer, verify that the voltage switch is set to the correct position for the power available in your area. In the United States, the utility power is supplied at a nominal 115 volts at 60 Hz. In other areas of the world, such as Europe, the utility power is supplied at 230 volts at 50 Hz.
D AC power connector
E Certificate of Authenticity (COA) label plate
Carries the COA label for the Microsoft® operating system originally installed on the hard drive.
F Fan vent
G Ports
H Add-in card retention door
I Five add-in card slots
Note: The number, types, and locations of actual installed add-in cards may vary from those shown.