UBNT Rocket Prism AC Gen 2 improves from 80 Mbps to 320 Mbps on a 40 MHz channel width.They were quick swap outs using the same AC antennas as before, with a slight realignment of the antennas as that seemed to help with the new units. The access point is on an AM-5AC21-60 sector antenna, and the other side is on a RD-5G31-AC.