Extend USB up to 45 meters over cat5e/6. I was wanting to get my big ugly printer off the desk next to the computer and put it in another room. I don't have the luxury of a wireless printer. This would be perfect. http://www.monoprice.com/products/product.asp?c_id=103&cp_id=10303&cs_id=1030304&p_id=6042&seq=1&format=2