Amazon offers the TP-Link AC1900 802.11ac Dual-Band Wireless Gigabit Router in White for $109.99. Apply coupon code "20ARCHERC9" to drop the price to $89.99. With free shipping, that's the lowest price we could find by $20, although we saw it for $10 less on Prime Day. It features simultaneous 2.4GHz and 5GHz frequencies, a 1GHz dual-core processor, four Gigabit Ethernet ports, USB 3.0, beamforming technology, and three detachable antennas.