A select number of Macs came with 802.11n-capable hardware built-in, but required a software update to connect to wireless networks at that speed. The machines that could be updated included:
- 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)
This support document helped users determine if they were ready to go. The installer was easy to get:
The Apple Extreme 802.11n Enabler for Mac is available at the Apple Store Online or on the disc that comes with the Airport Extreme (802.11n) Base station.
Apple charged $1.99 for it on the App Store. At the Genius Bar, we just installed it whenever we came across a machine that could run it.