The Blackmagic Quad card 'works'...

...but the real question is what is the latency and frame buffering?

I've tested the latency, but not the frame buffering.
You need to test it in your own environment to see if it works for your setup.
(thats why I'm not posting my results - as it depends on your hardware configuration etc...)

The card also has custom micro BNC connectors that aren't that secure.


Simon