The asus rt ac66u is a 5th gen dual band wi fi router and the launch platform for the new asus aicloud service its speed reaches 175gbps currently the fastest available utilizing the broadcom 80211ac wi fi controller and working in 24ghz and 5ghz the 5ghz band supports up to 13gbps exceeding current gigabit wired transmission and 3x faster than 80211n the rt ac66u offers smooth lag resistant multitasking and super fast streaming while asus airadar intelligently strengthens wireless