A plug and play internal Bluetooth upgrade is now available for PowerMac G5,  PowerMac G4 and iMac G4 systems. The chip adds Bluetooth connectivity between Macs and a wide range of Bluetooth-enabled devices such as PDAs, cellphones, cameras, headsets, printers, keyboards and mice.     

It's very easy to install as the Bluetooth module fits directly into the Mac's main logic board, attaching to the built-in Apple antenna.

It's now available for $25.95 and comes with 1-year warranty.

Compatibility:

PowerMac G4 (FW 800)
PowerMac G5
PowerMac G5 (June 2004)
PowerMac G5 (Late 2004)
iMac G4 (17-inch Flat Panel, 1 GHz)
iMac G4 (USB 2.0)