I was just researching whether my Antec would fit; my PS is 160mm deep which is the largest it will accommodate; reading up on this case, it seems like a crapshoot if 160 fits with ease or with force.
I didn't see 'earthwise' on antec's site, but earthwatts. The only 620 I found listed was the Eco 620 at 180mm deep, so that would not fit.
Buyer beware, it is not uncommon for these Prodigys and other Bitfenix cases to ship with USB 3.0 front panel cables that are defective and do not work with USB 2.0 devices. I have one and went through a PITA to get it working.
I have a Corsair HX520 modular PSU I have been using for at least 4-5 years and it fits. It's tight but it fits.
http://www.bitfenix.com/global/en/forums/search?term=usb+3.0+front+panel+defective