How can I determine if my device supports MHL? I'm an Android novice.  I want to determine if my Samsung Galaxy Tab A (2017) supports MHL.  Two obvious ways of doing this are: 


Consult the manual.
Connect the tablet to an HDMI display using an MHL adapter, and try it!


But, I don't see any mention of MHL in the manual, and I don't have an MHL adapter.  Is there any way I can tell from within the Android OS if my device supports MHL?
Perhaps you should try checking here first: MHL Devices

Another way is using a third party tool: Checker for MHL (HDMI)