What does AC1200, AC1750, AC1900 or more, mean and what's the difference?
o2Air-Go - Long Range WiFi Router - 2800 MBPS FAST Gigabit
TP-Link Archer C7 AC1750 Wireless Dual Band Gigabit Router
EA7450 - Dual-Band AC1900 WiFi 5 Router | Linksys: US
Amazon.com: TRENDnet AC1200 Dual Band WiFi Router, TEW-831DR, Gigabit WAN Port, 4 x 5dBi Antennas, Wireless AC 867Mbps, Wireless N 300Mbps, Business/Home Wireless AC Router for High Speed Internet,MU-MIMO Support : Electronics