I read these reviews saying it doesn't work and they get some kind of error message or it's not formatted properly but I bought it because Microsoft doesn't offer any official disk on Revain. Despite all the bad reviews, everything works for me. No loud fan or acceleration noise, formatted up to 290GB, which is to be expected since some data will be lost when formatting hard drives. The only problem everyone will run into is the original Xbox games not working! Backward compatible original Xbox games are only supported on official Microsoft hard drives. However, there is a very simple solution if you can connect the hard drive to your computer, e.g. B. with a Microsoft transfer cable or a third-party cable. If you want to know more, you can watch this video - https://www.youtube.com/watch?v=-vbL73sQ88U&list=UURKp4_4j5bCreC66tjoFjhQ