Amazon offers the TRENDnet AC1900 HD Dual Band 802.11ac Wireless Gigabit Router, model no. TEW-818DRU, for $119.99 with free shipping. (Newegg charges the same.) That's the lowest total price we could find by $21. It features both 802.11ac and 802.11n dual-band support, four Gigabit Ethernet ports, the ability to create an isolated guest network, and both USB 3.0 and 2.0 ports. Deal expires December 1.