Increase the range and reliability of your wireless network. Cisco Small Business HGA7S High Gain Antenna for R-SMA Connectors attaches to your existing Cisco wireless networking device, increasing the strength of both outgoing signals and sensitivity to incoming signals.The benefits of increased range include fewer wiring costs, stronger signals to distant corners of the workplace, and blanket coverage in large rooms, public places, and wireless hotspots. Installation is as easy as unscrewing your current antenna and replacing it with the HGA7S, with no additional drivers or modifications necessary.