Do the White iMac “Core Duo/Core 2 Duo” models support 802.11n?
The iMac “Core Duo” models do not support 802.11n. All subsequent Intel-based iMac models — with the exception of the iMac “Core 2 Duo” 1.83 17-Inch — support 802.11n, but the “White” Core 2 Duo models require a firmware update before it is available for use. For the wireless capabilities of all “recent” — G3 and later — Macs, please refer to the AirPort Capability listing.