Best Buy via eBay offers the Asus Dual-Band 802.11ac Wireless Gigabit Ethernet Router, model no. RT-AC3100, for $191.99 with free shipping. That's the lowest total price we could find by $53. This dual-band (2.4GHz and 5GHz) wireless router features four Gigabit Ethernet ports, USB 2.0 and USB 3.0 ports, and four detachable antennas.