Belkin Wireless 802.11b 11Mbps PCI Adapter Installs easily into the Wireless Desktop Network Card's Built-in antenna jack The Antenna complies with the IEEE 802.11b standard in order to communicate with other 54g and 802.11b compliant wireless devices. Operates in the 2.4-2.5 GHz frequency Compatible with all 802.11 coaxial connections using a SMA reverse male connector Provides wireless coverage up to 590 foot from the antenna