The following Macs have the 802.11n hardware built-in:
- * MacBook Pro with Intel Core 2 Duo
- * MacBook with Intel Core 2 Duo
- * Mac Pro with AirPort Extreme option
- * iMac with Intel Core 2 Duo (except the 17-inch, 1.83GHz iMac)
However, you will have to upgrade the firmware.
The CD that comes with your new airport extreme base station contains the AirPort Extreme 802.11n enabler, which updates the firmware on your airport card to enable 802.11n high-speed WiFi:
- 74 - 248 Mbit/s
- 70 - 160 metres range
If you buy a third-party 802.11n base station, you can get the enabler from the Apple store for $1.99
