Xtreme N and Xtreme MJ are high power Wi-Fi solutions with up to 7 mile range. Output power up to 4W (36dBm) EIRP (Effective Isotropic Radiated Power) - the highest power legally allowed - for rock solid, high speed connections. Input power is 5-30 Volt DC or 100-250 Volt AC 50/60Hz (via AC adaptor). No power robbing USB connections. Xtreme is an unobtrusive, small and compact wi-fi transceiver that can be mounted on a rail, arch or masthead. Features a user friendly web-based interface developed by Bitstorm so there's never any software to install.more...See more text