Yugster offers the factory-refurbished D-Link 802.11ac Wireless Dual-Band SuperSpeed USB 3.0 Adapter, model no. DWA-182-PB, for $19.97. Coupon code "DEAL2NEWS" cuts it to $17.97. With $4 for shipping, that's the lowest total price we could find for a refurb by $1 (most stores charge over $30). This dual-band adapter supports speeds up to 867Mbps. A 90-day D-Link warranty applies. Deal ends July 19.