What Is The Difference Between 802.11n And 802.11ac?
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802.11n is the predecessor to 802.11ac and was released in 2009. It operates on the 2.4GHz and 5GHz frequency bands, with a maximum theoretical data rate of 600 Mbps.
802.11ac was released in 2013 and operates on the 5GHz frequency band. It has a maximum theoretical data rate of up to 1.3 Gbps and supports multiple spatial streams, allowing more data to be transmitted at the same time. It also has improved modulation techniques and better error correction, which help to improve reliability and range.