I just got one yesterday just because it has a port, not sure what I am going to do with it but... It works with no issues.
Plug it into the tablet, then the TV and boom everything appears on the TV.
Now I just need to figure out why I need it. I know I need it, just not sure why
ROM: Carbon Rom for now
ASUS Transformer TF701
ROM: CM 10 something or other.