Rbsxtg-5hpacd-sa (sxt sa5 ac) 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 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. 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.