Linksys offers the Cisco Linksys AC1900 Dual-Band 802.11ac Wireless Gigabit Ethernet Router for $74.99 with free shipping. That's $10 under our mention from last June and the lowest price we've seen. (It's the best deal now by $66.) It features 2.4GHz and 5GHz frequencies, a USB 3.0 port, four Gigabit Ethernet ports, and WPA and WPA2 encryption with SPI firewall.