I have for sale an Asus USB AC-53 AC12000 USB Adaptor for use with all wireless networks but primarily with 2.4ghz and 5ghz AC/N networks.
It was purchased from PC World on 15/12/2014 and comes boxed as new with all accessories, paperwork and driver disc.
I can include the receipt for warranty purposes.
Link to the adaptor can be found here...http://www.dabs.com/products/asus-usb-ac53-802-11ac-adapter-8N8L.html
Price includes delivery.