28 About Your Computer
Back View (Desktop Orientation)
1 card slots Access connectors for any installed PCI or PCI Express 
cards.
NOTE: Check the documentation for cards to ensure that 
you can accommodate them in your configuration. Some 
cards that require more physical space and power (such 
as PCI Express graphics cards) may restrict the use of 
other cards.
2 power connector Insert the power cable.
3 voltage selection 
switch
See the safety instructions in the Product Information 
Guide for more information.
NOTE: The voltage selection switch is available on the 
375-W PSU only.
4 back panel connectors Plug serial, USB, and other devices into the 
appropriate connector.
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