Mikrotik Routerboard RBSXTG-5HPacD-SA (SXT SA5 ac) The new AC standard is here, with up to 866Mbit over the air datarate, 256-QAM modulation, and 80MHz channels. 802.11a/n/ac opens up new possibilities and speeds never possible before. The SXT SA5 ac is a new member in our 802.11ac product lineup, currently two models are available With regular 28 degree antenna, and the SA model with a 90 wide beam - width sector antenna. The SXT SA5 ac also support 802.11a/n standard, Nstreme and Nv2 protocols and are compatible with all legacy RouterBOARD devices. Both devices come with Gigabit Ethernet. New products are backwards compatible - for example, you can replace your 5GHz 802.11a/n legacy Access Point with new 802.11ac product and your existing customers will still be able to connect to it.