Newegg offers the Linksys AC1200 802.11ac WiFi Dual-Band MAX Range Extender, model no. RE6500-FFP, for $89.99. Coupon code "EMCWPHB58" cuts it to $69.99. With free shipping, that's the lowest total price we could find by $16. It simultaneously extends ranges for 2.4GHz and 5GHz bands and features four Ethernet ports and two external antennas.