Newegg offers the refurbished ASUS Dual Band 802.11ac / 802.11n Wireless 1750 Gigabit Router, model no. RT-AC66R, for $99.99. Redeem this $10 mail-in rebate to cut it to $89.99. With free shipping, that's $8 under our mention from last month and the best price we've seen for a refurb unit. (It's a current low by $20 for a new one.) It features a maximum speed of 1.75Gbps, dual-band support, four Gigabit Ethernet ports, and two USB ports. Deal ends December 31.

A 90-day warranty applies, but it is unclear who backs it.