Sonnet Technologies N80211-PCI Aria Extreme N Wi-fi Pci Card Simple way to add draft 802.11n wireless networking capability to any compatible computer When used with 802.11n network, delivers up to 2.5x the speed and 2x the range of 802.11g network Works with all AirPort, AirPort Extreme, and AirPort Express base stations and equivalent wireless routers ackward compatible with 802.11b and 802.11g devices