802.11ac, a key generation of Wi-Fi, utilizes dual-band wireless technology, allowing simultaneous connections on 2.4 GHz and 5 GHz devices. It's backward compatible with 802.11a/b/g/n, offering up to 1300 Mbps on 5 GHz and 450 Mbps on 2.4 GHz, making it common in home routers.
802.11ac is a Wi-Fi standard that delivers higher throughput to wireless local-access networks than 802.11n, the preceding Wi-Fi standard.
But what does 802.11ac mean, and is it really necessary for you to get the most out of your daily WiFi browsing experience? Read on as we clear up the confusion around this confounding wireless networking standard and tell you everything you need to know about the newest devices that can support it in 2016. 802.11 Explained