J-Link 3W 2.4GHz 802.11 b / g / n High Gain Wi-Fi Signal Booster and Wireless Signal Amplifier Wireless N G B Antenna Power Amp RP-SMA 37dBm 17dBi WiFi Easy install. Low cost alternative to expensive routers. 3W 2.4GHz High Gain WiFi Signal Booster Increases the coverage of your wireless network.