How does it–It's really fast!
Yes but how can it be faster–Why is fast good? Because of all the things you do in your life.
Okay, but what technology does—Circular antenna LOLz!1
It's fast because it supports the 802.11ac standard, which offers faster rates than 802.11n. The 802.11ac standard provisions for various rates, including the 1900 Mbps rate supported by this device. That's 600 Mbps over the 2.4 GHz band, plus 1,300 Mbps over the 5 GHz band.
802.11ac enables faster rates primarily by supporting wider bandwidths, more antennas, and larger symbol constellations (each symbol transmitted over the wireless channel can take on one value from a larger set of possible values, thereby conveying more information per symbol).