Use this 2.4Ghz omnidirectional antenna for up to 4x more indoor coverage from your router or access point. This antenna will add and ADDITIONAL 7 dBi over the standard 2dBi of the AIR-ANT4941. Compatibility: All radios that use a RP-TNC antenna connector, including (but not limited to): Cisco 850 Series Wireless Routers, Cisco 870 Series Wireless Routers, Cisco 350 Series Bridge/Access Points, Cisco Aironet 1100 Series Access Points, Cisco Aironet 1200 Series Access Points.