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Our company is considering using multiple NCS in our product, but the power supply requirement seems a little vague. If we plug multiple sticks into a USB hub, is it correct to say that 5V&3A is required for each USB port in the hub?
Experience has shown that in the USB 2.0 mode, it is fully operational with 1 port = 5V
and 250 mA to 300 mA.
A self-powered USB hub is required.
It is not the maker official information.
It is the result of my experiment.
I use four at the same time and are moving normally.
I've noticed the stick consumes a peak of 2.5 watts. So you should allow that much per stick. The peaks are very short but you should provide headroom in case they happen to overlap.