150Mbps High Gain Wireless N USB Adapter Model BL-WN190AH is a wireless adapter that employs two chips to amplify power, output can reach 500mW, equipped with a 10dBi omni-directional antenna which has extreme long range in open environments, the antenna also provides better penetration and stability in complex wireless environments (like barriers or heavy interference). 150Mbps High Gain Wireless N USB Adapter Model BL-WN190AH can transmit about 2,000 meters (actual distance can depend on the environment). It is compatible with the IEEE 802.11b/g/n standards. It is Plug and Play, easy to install and use.