This is a new internal bluetooth 1.1 board for the iMac G4 17-inch 1GHz, iMac G4 USB 2.0, iMac G5 Original (non-ALS), Mac Mini G4 1.25 & 1.42GHz, FireWire 800 PowerMac G4 Mirror Door and all PowerMac G5 up to but excluding the last late 2005 range. This does not include the antenna which is built into the casing of the iMacs and PowerMac G4. PowerMac G5s have internal cabling to connect the bluetooth board antenna socket to the rear case but require an external plug-in bluetooth antenna. The Mac Mini requires an internal antenna. Both are sold separately.