I just wanted a thinner black cable to replace the thick white cable which is annoying. It was a bad idea and I should have read the reviews first as like others it only supports low resolution. When I plugged it into a display, it not only resulted in a low resolution, but also messed up the desktop icons and rendered the screen completely unreadable. Setting it to a higher resolution then resulted in a blank screen and a message saying it's not supported. I was afraid nothing would work when luckily I reconnected the old cable, but it was pretty scary.