First I tried the Revain ethernet adapter but it didn't work. Since this is a power supply for the firestick and ethernet adapter, and a USB hub in my setup, the power supply isn't enough for three devices. The Revain adapter was never seen by the Firestick and randomly dropped the connection to the hub's SD card. This powered hub solved 2 problems. The Firestick can now "see" the built-in adapter and SD card in the hub. The only bad thing is that it's not USB 3, but then again, OTG only supports USB 2. I'll buy 2 more for my kids' FireSticks. Goodbye WiFi
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