Newegg offers the TP-Link 802.11ac Wireless Dual Band Gigabit Router, model no. Archer C9 AC1900, for $89.99 with free shipping (B&H Photo-Video and Amazon sell it for the same price). That's $5 our mention from a month ago and the best price we've seen. (It's also a current low by $30.) It features a 1GHz dual-core processor, full Gigabit ports, USB 3.0, simultaneous 2.4GHz and 5GHz frequencies, beamforming technology, and three detachable antennas.