This USB 2.0 hub gets the power from one this PC's one of USB port. The hub is connected to six of this USB DAQ devices. The hub both communicates and powers the six DAQ boards.The power for the DAQ is given as:
I have read here that max current cen be drawn from a USB 2.0 port is 500mA and for USB 3.0 port is 900mA.
In my case it seems the current needed for six DAQ is 230 * 6 = 1.5A. Does that mean I'm exceeding limits for the PC's USB port??