I bought to replace my "Dying" 250 GB HDD in my MacBook (Late 2009) the plate. Delivery as usual without any problems. The dubbing of my data I have done via a connector (USB) and was able to migrate to the new drive my system. The subsequent exchange was very easy with the right tools (mini screwdriver) and has not lasted 10 minutes. Now makes working with my old MacBook fun again! It is quiet and extremely fast :-) Would recommend only.