Works great with my Nexus 5X, which has a USB-C port, via the included adapter. I've tried both USB 2 and USB 3 devices, it doesn't work at all on my Samsung Tab A (10 inch) which doesn't require an adapter. There is no indication that the device is powered at all. And I know the tablet can OTG because other adapters (like Inateck) work fine. By the way, the adapter doesn't allow Inateck to work with Nexus. Even on Inateck there is no electricity. So I have to take both adapters with me to cover both devices. It seems solidly made, but I can't give more than two stars for a device that only does half the job advertised.
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