5thClassic20, 60 GBFirewire; USB152005JuneThe iPod Special Edition U2 is a standard iPod model with some differences, including: Black plastic exterior, red Click Wheel, signatures of the U2 band members engraved on the back, and "iPod Special Edition U2" engraved on the back. The first model was based on an iPod (Click Wheel) with a 20 GB hard drive. In June 2005, a new version of the iPod Special Edition U2 was introduced that was based on an iPod with color display. These are both also considered fourth-generation iPod models. In June 2006, a new version of the iPod Special Edition U2 was introduced that is based on a 5th-generation iPod (also known as iPod with video) with a 30 GB hard drive. In September 2006, a model based on the iPod (5th generation Late 2006) was introduced.