Why not just use enterprise PSU modules for redundant PSUs? They typically output only 12v and large amounts of it. You can get upwards of 4000w in a redundant PSU across four modules.
The nice thing about the above unit in the OP is ease of use. Standard PC/Power Cable 3-prong input and 12V Terminal +/- Output.
I would rather not have to solder/crimp and/or hunt down schematics to locate the proper output leads etc (not to mention, 'SPEC' Hunting, as most will be sold as model# replacements....not listing ratings as part of the sale's pitch....lol
) on redundant replacement modules/cartridges without a backplane, although it would probably be a ton cheaper and only require a bit of legwork to get the job done. It's definitely something to consider....
thanks for the tip. I will check out prices.