Sonnett Technologies G54-PCI Aria Extreme Wireless PCI Card (54 Mbps) Wireless data transfer rates up to 54 Mbps Compatible with Apple AirPort Extreme and other 802.11g wireless hubs Backward-compatible with 802.11b devices Requires Mac OS X 10.2.6 or later and AirPort Extreme driver 3.1 or later Supports Microsoft Windows 98 SE/Me/2000/XP