As one of its daily deals, Amazon offers the TP-Link AC1900 802.11ac Dual-Band Wireless Gigabit Router in White for $84.99 with free shipping. That's $5 under last month's mention and the lowest price we could find by $25. 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. Deal ends today.