Wi-fi-designations meaning

The five Wi-Fi (802.11) technologies (a, b, g, n and ac) are often abbreviated BGN, ABGN and A/B/G/N/AC in the specifications for wireless routers, Wi-Fi access points and the Wi-Fi in portable devices. For example, "N" means 802.11n.Multiple Radio Chains (2x2, 4x2)The 802.11n and 802.11ac technologies support multiple antennas, and a "2x2" or "4x2" in the specification means two transmitting and two receiving or four transmitting and two receiving antennas. For more information, see Wi-Fi, 802.11, wireless router and dual-band router.802.11 Frequency Standard Band 11a 5 GHz 11b 2.4 GHz 11g 2.4 GHz 11n 2.4 GHz and 5 GHz 11ac 5 GHz.
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