thank you for trying to help
it is for an avalon 6
they use 1100 watt
But that should not really matter I am just clueless what PSU those 2 weird connectors fit on
Yeah, I've never owned an Avalon. But I wouldn't mind having 3 or 4 of the 741's to add to my small mining room farm. Alas, they won't send me any unless I send the some BTC first. LOL

You might go here:
http://www.centrix-intl.com/ and type in "Avalon" or "breakout board" in the search box on top left. Maybe you can figure out what different power supplies can be used with Avalon 6.
Good luck.