Model: PBE-2AC-400-US (2 Pack) The latest generation of airMAX CPE the airMAX ac 2.4 GHz AC, with dedicated Wi-Fi management. The 2AC directs RF energy in a tighter beamwidth. With the focus in one direction, the 2AC blocks or spatially filters out noise, so noise immunity is improved. This feature is especially important in an area crowded with other RF signals of the same or similar frequency. This airMAX ac products support up to 330+ Mbps real TCP/IP throughput - more than double the throughput of standard airMAX products.