Newegg offers the refurbished Asus Dual Band 802.11ac Wireless AC1200 Gigabit Ethernet Router, model no. RT-AC56R, for $49.99. This $10 mail-in rebate drops the price to $39.99. With free shipping, that's $5 under our mention from June and the best price we've seen. (It's also $19 less than the best deal for a refurb and $46 under the lowest available price for a new unit.) It features a maximum speed of 1.17GB/s, dual-band support, four Gigabit Ethernet ports, and USB 3.0 for sharing printers and hard drives. Rebate ends March 27.
A 90-day warranty applies, although it's unclear who backs it.