I try to connect a USB mass storage(2.0) to a USB(1.1),
but found that there is problem, the storage can't be
recognized...
The problem is that the power supply of USB(1.1) is not
strong enough to support USB mass storage(2.0), so for
the mass storage, the middle connector is to connect for
data transmission, and the end connecton needs to be
connected also for power supply.
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