What about my questions regarding the possibility to use this to run miners in a datacentre?
of course you can run those in a datacenter and connect remotely to them. ssh and web+https start on boot. forum users suggest that 40 usb asic miners (block eruptors) can run on a single raspberry.
I did not understand why to include a second R pi, thus did not answer earlier, did not make sense. there is no way how the second one would take over the mining coordination in case of the failure of the first one.
I would recommend using something like this if you are wanting faster power cycle times than waiting for a "hands on" tech at the datacenter to get around to taking action on your ticket. I guess it all depends on your co-lo agreement.