It is detailed in the User's Manual how to install an AirPort card. I will assume that you don't have the manual and that's why you're asking. You can download one at Apple's iBook Support web site: http://www.apple.com/support/ibook Here's a direct link to the PDF: <http://manuals.info.apple.com/Apple_Support_Area/Manuals/ibook/0221682iBook G4UG.pdf> You'll want to go to page 51: Installing an AirPort Extreme Card On 2/24/06 2:10 PM, Jesse Leo <jleo at projectsupport.com> wrote: > Wondering if anyone knows if it is possible to install a wifi card into a G4 > Ibook (800 mghz). There are no visible slots where one would go, though a > friend mentioned there may be a slot under the keyboard or perhaps somewhere > near the battery. Any info or advice would be great.