The 802.11ac -2013 update, or 802.11ac Wave 2, is an addendum to the original 802.11acwireless specification that utilizes MU-MIMO technology and other advancements to help increase theoretical maximum wireless speeds from 3.47 Gbps in the original spec to 6.93 Gbps in 802.11ac Wave 2.
The original 802.11ac spec itself served as a performance boost over the 802.11n specification that preceded it, increasing wireless speeds by up to 3x. As with the initial specification, 802.11ac Wave 2, or 802.11ac Wave2, also provides backwards compatibility with previous 802.11 specs, including 802.11n.
