I plan to make this x5-x6 RPI 3 A+ cluster but I am no sure what USB Charger to use. I would really prefer something with 5-6 ports. I know the spec for output are 5V/2.5A and I plan to use it in combination of an USB device that uses 5V/0.5A so that would be x5.
I get that I would need something like 15 A (3 A per port) with 75 W in total. All that said, I am not sure if the PIs really use 2.5 A because I would be just use them as proxies(in my opinion that wouldn't load it up excessively).
As for micro USB cables I thought about Volutz Equilibrium(19 AWG Power). On the last note I know it wont be cheap but I would really like to know what are your opinions about this.