Scoop's RB-SXTG5ACSA by MikroTik RouterBOARD, is an AC with up to 866Mbit over the air data-rate, 256-QAM modulation, and 80MHz channels. The SA model has a 90 degree sector antenna, supports 802.11a/n mode and is compatible with all legacy RouterBOARD devices, including Nstreme and Nv2 protocols. It is backwards compatible- for example, you can replace your 5GHz 802.11an legacy Access Point with new 802.11ac product and your existing customers will still be able to connect to it.