Amazon offers the TP-Link Archer 802.11ac Wireless Dual Band Gigabit Router, model no. C7 AC1750, for $99.99. Clip the 20% off coupon found under the product price to cut it to $79.99. With free shipping, that's tied with our September mention as the lowest total price we've seen. (It's also a current price low by $20.) This dual-band router features full Gigabit ports, two USB ports, simultaneous 2.4GHz and 5GHz frequencies, detachable antennas, and WEP, WPA, WPA2, WPA-PSK, and WPA2-PSK encryption.