[Galaxy Tab Pro 12.2, 10.1, 8.4 Accessories] Reddog58:
Lava OTG Adapter

All I have the Lava OTG USB Adapter Model TL-002. This has a single USB and power port. I am using it with a Tap Pro 8.4.

First off if you go this way be very careful with their cable which comes already plugged in to their adapter. The first one I had didn't work, and I now know why which I will get to, because if you try to push it in any farther it will break inside the adapter. I wouldn't say its a very high quality adapter at all, just a small cheap plastic thing. When I first tried to use it the Tab kept reporting, USB Connected then USB Disconnected over and over, this was with power applied. It would see the flash drive if there was no power. Nothing you couldn't do with a cheap Ebay OTG cable. But every time I tried adding power the tablet would beep and beep, drop the flash drive and then finally it would lock up. I tried every combination I could and never really could get it to work. It would charge but not with a flash drive attached. Just looped over and over. Thats what prompted me to look at their connector and push it in farther which then broke it. I did RMA it back to Lava and they did replace it even though I broke it.

The second unit I received did exactly the same things. The flash drive worked until I added power. I gave up on it for a while then before I did another RMA I tried again. This time I found how to make it work, sort of. Before I was using the OEM Samsung power wart and cable throughout all my testing. Was just about to give up when I tried an HTC cable I had next to it connected to a cheap Nexus 7 tablet dock. That actually did work where it would charge and use the flash drive. After trial and error I finally figured out it wasn't a cable issue but the Samsung power wart that was causing me problems. And I tried at least two of them I had here. Once I switched over to the HTC wall wart even with the Samsung cable I was getting the USB flash drive to work and charging at the sametime. Thats fine but not exactly all I wanted it to do. Last night I tried to add a USB hub so I could run the flash drive and a USB DAC. No luck there at all. Now this is a cheap USB non-powered hub so that might be a problem. But using the hub the same flash drive was not connecting nor was the DAC being seem.

Maybe with a powered hub it might work. Since I already have the cost of the adapter and shipping from and back to Lava I will try a powered hub. But I really don't have much confidence its going to work as expected. Could be the USB DAC I am trying, the hub I'm not sure. The DAC is a Fiio E7 and the hub is a cheap GearHead device. I will say that my Note3 does recognize the DAC and can use the flash drive in a Note2 doc I use. That doc has a HDMI out and three USB ports. Haven't tried the hub with it but it might work. The Tab Pro won't work with that doc. I also have a Samsung doc that is made for the Tab Pro. Its much more limited and can charge and does support a single audio out jack but no USB ports.

Before I finished this post I thought I would try all of these devices on the 2 dollar Ebay OTG cable without the Lava adapter. On the Tab Pro the hub works, the flash drive works and so does the DAC. So unless I am missing something like the powered hub this Lava adapter is very limited as to what it will do. Or your luck many vary but at the price its clearly not a safe bet like it should be. Anyone have an experience if the Cyanogenmod 11 will give us true USB Host adapter support. I have a Nexus 7 in the dash of my truck with a custom mod that does everything you could ask and goes into hibernation when I turn off the key. And the cool thing about that is it keeps the USB connection so its available as soon as your start the truck back up.