Amazon offers the TP-Link Archer C5 802.11ac Wireless Dual Band Gigabit Router, model no. C5 AC1200, for $79.99 with free shipping. (B&H Photo and Video has it for the same price.) That's the lowest total price we could find by $5. It features four Gigabit ports, two USB 2.0 ports, simultaneous 2.4GHz and 5GHz frequencies, and three external antennas.