Which one will work with ASrock Z97 Extreme 4

I bought ASRock Z97 Extreme 4 and Intel I7-4790K for my new build.



Can I use this Corsair VX 550w which I already have?



http://ift.tt/1cEEmFh



or do I need something like this?



http://ift.tt/11Sr2yf



Is the EPS12V designation important in my case?



thanks

Which one will work with ASrock Z97 Extreme 4