I have a hobbyist's, caged 5v 40A (200W) output, power supply that I want to use to power a 28-hub USB2.0/3.0 data/power hub. I calculated the max current draw to be 15.8A based on:
24 x 500mA (USB 2.0 Ports) = 12,000mA (12A)
4 x 900mA (USB 3.0 Ports) = 3,600mA (3.6A)
and confirmed with...