802.11ac is a wireless networking standard that enhances the speed and performance of Wi-Fi connections. It operates in the 5 GHz frequency band, allowing for faster data transfer rates compared to its predecessor, 802.11n. This standard supports multiple antennas through a technology called MIMO (Multiple Input Multiple Output), which improves signal quality and range. One of the key features of 802.11ac is its ability to handle multiple devices simultaneously without significant drops in performance. It also introduces wider channel bandwidths, up to 160 MHz, which further increases the potential data throughput. This makes it ideal for high-bandwidth applications like streaming and gaming.