Hi! Just noticed that MS lists a new SP4 power supply rated at 65W. However, all the reviews I saw rated the included power supply at 36W. Since the SP4 should not consume significally more power than the old one the only reason to increase the output would be faster charging. But the reviews state that the required time is about the same as on the old one. There has to be an advantage in providing almost twice the power. So either it can charge faster under full load (which would be possible due to better cooling) or the reviewers still got the old model (in which case one could expect faster charge times). What do you think? S.