Just now, porina said:
This looks very promising, thanks. Used, they're about half the price of a 710.
In a quick look the ones I've managed to find all seem to be DP+DVI so not ideal. They could be adapted in a pinch so I'd keep this as a reserve solution.
The problem with the 210 is age. Hardware acceleration doesn't really work on it so that kinda sucks. I've looked a bit more and thus far i've found these options:
Hd 8450 (same as a 7450 it seems)