Responding to demand for speeds required for video media streaming, online gaming, and telephony applications for PCs, tablets, and smartphones, the 802.11ac standard takes advantage of the minimal interference offered by the 5GHz band as compared to the 2.4GHz band. For backward compatibility, all ZyXEL routers operate simultaneously on both 2.4Ghz (11n) and 5Ghz (11ac), allowing both types of devices to connect at the same time without interfering with performance. The USB adapters are compatible with both 5Ghz 11ac and 2.4Ghz 11n.