No need to buy a whole bunch of new cables. That paragraph specifically says they don't work with OTG adapters, which is why I bought this adapter. It works for both USB-C and Micro-USB. In fact, this adapter works better with some of my micro USB devices. My old adapter didn't work on my tablet or my wife's phone. This one works with every device I've tried (two tablets and three phones). 5 stars from me!
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