Open Box Sales via Rakuten Shopping offers the refurbished Apple AirPort Extreme 802.11ac Wireless Base Station, model no. ME918LL/A, for $139.99 with free shipping. That's $45 under the lowest total price we could find for a new unit, although we saw a refurb for $20 less last week. It uses 802.11ac WiFi technology, which offers up to 40% faster transmissions than 802.11n. No warranty information is provided.

Note: First-time Google Wallet checkout users can apply coupon code "BUYWITHGOOGLE" and checkout via Google Wallet to drop the price to $114.99.