This is my genuine RossTech VCDS cable. Purchased from Nigel (NHN) on this site so no worries about authenticity. - He will verify this if you need him to. I have only used it to reset my service light a couple of times and it still looks brand new. Unfortunately, now my Audi has gone i no longer need this. This is a real bargain at only £140 delivered. (next day special delivery) Bank transfer is fine and faster. Thanks for looking. Please contact Richard on 07763002453 if you need to know anything about it.