This links to the PSU sold new newegg.
This NewEgg links to the PSU sold by a third party ECLL BEST
Looks like the same model number.
Honestly the Left menu when viewing parts list uses way more space than I care for, and causes the main content of the page not to fit on screen when viewed in portrait mode (side ways monitor) without horizontal scrolling. At the very least I'd make it collapse able but would probably prefer a thin bar(s) across the top/bottom