Best Buy offers the refurbished 6th-generation Apple AirPort Extreme 802.11ac Wireless Base Station, model no. ME918LL/A, for $119.99 with free shipping. That's $25 under our May mention of a refurb and $11 below the lowest total price we could find for a new unit. It uses 802.11ac WiFi technology, which offers up to 40% faster transmissions than 802.11n.
No warranty information is provided.