For anyone looking for a way to have a power switch to your ATEM Mini line of switchers. Check out this one on
https://www.ebay.ca/itm/255202369285I've been using it for 3 months and it works great. It is well built and very convenient. Also has locking connectors so power can't get accidently pulled out like some of the cheap in-line power switches found on Amazon and eBay.
Hope fully this helps you out as it took me awhile to find the right kind of switch for my ATEM Mini Extreme.