 This allows full 802.11 Draft-N 2x2 communication in both 802.11 Draft-N bands at the same time.On October 20, 2009, Apple unveiled the updated AirPort Extreme and Time Capsule products with antenna improvements (the 5.8 GHz model).On June 21, 2011, Apple unveiled an updated AirPort Extreme base station, referred to as "AirPort Extreme 802.11n (5th Generation)".