Where can I find a keyboard case that is compatible with my Samsung Galaxy Tab 4 1.01 model T537A?

[AC Question]

I now have a Samsung Galaxy Tab 4 10.1, model T537A (from AT&T). I need to find a bluetooth keyboard case for it. I had ordered one, but I discovered when I received it that it didn't support my specific model (T537A). I'm now unsure whether any statement on a keyboard case saying it supports the tab 4 10.1 whether it actually supports my model. I saw one that supports the T530, but I don't know whether that will be equivalent to the T537A or not.