Linksys offers its refurbished Linksys AC1750 Max-Stream Smart Dual Band 802.11ac Wireless MU-MIMO Router for $39.99 with free shipping. That's $30 under our mention of a new one from Black Friday and the lowest price we could find for a refurb now by $20. It features a dual-core processor, wireless data rates of up to 1.8Gb/s, three external antennae, four Gigabit Ethernet ports, Gigabit WAN port, and USB 3.0.

Note: A 90-Day Linksys warranty applies.