Linksys Direct via Newegg offers its refurbished Cisco Linksys AC1900 Dual-Band 802.11ac Wireless Gigabit Ethernet Router for $39.99 with free shipping. That's tied with last month's refurb mention and $51 under the lowest price we could find for a new one today. It features simultaneous dual-band (2.4GHz and 5GHz), beamforming, USB 3.0 and USB 2.0, and four Gigabit Ethernet ports.

Note: A Linksys 90-day warranty applies.