HP USB to DVI External Video Adapter (NL571AA).

　　add a second screen to a desktop computer system a laptop computer or any other gadget with a us connection.

　　in just a couple of seconds.

　　here is a link if you want to purchase it online" for those that can not drive to choose it up".

　　copy & paste link.

　　/itm/HP-USB-to-DVI-External-Video-Adapter-NL571AA-/?

　　if you require any info simply email me thank you.