[lousken]

Never ever seen a power supply without a switch in my entire life and looking at eshops here in europe i cant find it either. Even the $30 have that

Also try pressing power button for 5-10 seconds on a laptop instead

[SoftTalker]

Maybe EU requires it? Most (all?) newer Dell desktops here have only the "soft" pushbutton power switch on the front of the case. Of course you can just pull out the power cord itself.