As the question suggests...
Some background info first....
I'm looking at building quite a few mining rigs that can mine a wide variety of coins. Each rig is going to have 6 GPUs each, and are going to be made up of 'older' Pascal Cards, like the 1080 and the 1080 Ti.
Each of these cards will be on a PCI-E Riser (duh), and each riser would either have a 6 pin power adapter, or a MOLEX power adapter.
It should be noted that there is no one brand of GTX 1080/Ti that I will be going after, instead, I will be using whatever cards I can get my hands on, so work with virtually all known brands in mind.
Getting to the actual question, I need a PSU that can power the 1080s and their risers comfortably. Any brand of PSU would do just fine, and I'm looking at spending around 400 USD on a single unit. Preferably, I would like to have one PSU per rig, instead of two. But two in one system is always an option.
Thanks for viewing!