Bought as a memory expansion for the Xbox One the hard drive. After you have reformatted the hard drive on the PC recognizes the exFAT One the hard drive itself and starts a run menu. The following conversion to an Xbox specific format takes a few seconds. The hard drive is very quiet and not actually perceive, not even under load. The speed advantage, I have the game Halo: The Master Chief Collection tested: Start time to the menu, internal disk = ~ 20s, 16s Mybook = Charging time of the Level "Gravemind" (to the video sequence), internal disk = ~ 45s, 29s Mybook = Even the main menu of the MCC responds precisely / quickly to inputs.
All in all I am satisfied, only the data transfer rate is likely to be somewhat higher. What's possibly even disturbing, you can see the status LED (white) on the front do not disable, standby flashes merrily to himself.