I bought this for a Microsoft Surface Pro 4. I got it as a gift from someone who couldn't find the original cable. This replacement arrived within a few days and works as advertised. The cable from the adapter to the computer is long (length 68 inches). The length of the cable from the adapter to the socket leaves a lot to be desired. It is only 18 centimeters long and barely reaches the floor from the outlet. However, it works. I've only had him for a few days. If it stops working I will update this review.