Not even that - the test was only performed at 1m (I guess you are going for the 2m if you need 1.5m?)Need only 1.5 meters but its tested up to 16gb/s according to the specs mentioned on QED site.
Do yourself a favour and get something that is Certified Premium at the length required. If there aren't any Certified Premium flat cables available... then there might be something in that...