Akodi via Amazon offers the Anewkodi Dual-Band 802.11ac Wireless USB Adapter for $18.99. Coupon code "HVBLQSWI" cuts it to $8.99. Plus, Prime members receive free shipping. That's a buck under our mention from six days ago, $31 off, and the lowest price we could find. It features a long-range 2dBi antenna and up to 600Mb/s WiFi speeds on 5GHz and 2.4GHz bands. Deal ends July 20.