Afaik Apple's switching power supplies support the specifications you described (for example, see Mac Mini's tech specs https://www.apple.com/mac-mini/specs.htm

Afaik Apple's switching power supplies support the specifications you described (for example, see Mac Mini's tech specs https://www.apple.com/mac-mini/specs.html https://www.apple.com/mac-mini/specs.html -- 50-60Hz 100-240v AC). Not to mention Apple sells region-specialized units just like every other major computer retailer.