It has no external power connection [hard disk is only via USB cable (included] connected to the Xbox. What is very convenient, because you re a cable less a / unplug needs.
Loading time / speed are fully in order for games, in my opinion, it shows no difference in the Xbox One that the games on the internal or external plate.
Last point: The Lautsträke .... short and sweet: the plate is not heard.
Am fully satisfied and can the My Passport hesitate to recommend.