This is the best selling notebook we carry in-stock. D600 are light  under 5 pounds and sleek looking notebooks. They do not have shared graphics memory so the notebooks do not have to multi task with the video and programs you are running. Units have an optional built-in wireless card and This is a must on a notebook from airports, hotels, and schools have wireless. please visit our store for purcahse. Units are refurbished and carry a 90 day or 6 month warranty.