Griffin Technology 3101-GTR GarageBand Guitar Cable (10 Foot) Plug one end into your Mac's input port and the other end to your guitar High quality, magnetically shielded cable eliminates the need for additional adapters GarageBand cable makes using a guitar with GarageBand a snap Cable uses both connection types and splits the mono guitar signal into the stereo mini-jack Works with GarageBand software found in Apple iLife 2004 (sold separately)