Mikrotik  RouterBOARD SEXTANT G CPE 802.11a/n 18dBi The SEXTANT is a 18dBi 5GHz antenna with a built in RB911G router. The SEXTANT has two polarizations to give you all benefits of 2x2 MIMO in 802.11n. Inside is the high power RB911 dual chain wireless device, with high performance, high output power, and a Gigabit Ethernet port, to fully utilize the benefit of 802.11n high speed wireless. The SEXTANT easy to use and quick to deploy, SEXTANT is ideal for point to point links. Operating System: RouterOS