Newegg offers the Trendnet 802.11ac Wireless Easy-Upgrader, model no. TEW-820AP, for an in-cart price of $25.88. Coupon code "EMCAXAK56" cuts it to $9.88. With free shipping, that's $10 under our April mention and the lowest total price we could find by $16. This device connects to your current router to give you 802.11ac wireless capabilities. Deal ends September 7.