AirPort first debuted on July 21, 1999 at the Macworld Expo in New York. An AirPort card was sold as an optional accessory with Apple's iBook line of notebooks and the AirPort base station was also introduced. The AirPort allowed transfer rates up to 11 Mbit/s. Antennas were integrated into the displays of iBooks, so reception was very good. Apple was the first manufacturer to embrace 802.11b wireless networking. The AirPort card was later added as an option for almost all of Apple's product line, including PowerBooks, eMacs, iMacs, and Power Macs. Only Xserves do not have an AirPort option. The first AirPort ("graphite') was based on the Lucent WaveLan PC-Card and used an embedded 486 processor. The second ("snow") has a Motorola PowerPC 860.