2dBi RP-SMA Antenna for Wireless PCI Card, USB Wireless Adapter or Router This 2dBi Dipole WiFi Booster Antenna will improve your wireless PCI card or wireless router's signal strength and quality and increase your wireless coverage. The antenna can send and receive WiFi in all directions, so no aiming is required. Installation is easy! Simply twist the antenna into your router or other compatible wireless device for increased signal and wireless range. No software needed.