802.11 Wireless LAN Speeds
802.11 2 Mbps (rare) 2.4 GHz band (limited in bandwidth)
802.11b 11 Mbps, 2.4 GHz 3 channels/access point
802.11a 54 Mbps, 5 GHz (> bandwidth than 2.4 GHz) 11 channels/access point
802.11g 54 Mbps, 2.4 GHz limited bandwidth