We have been using the Miglia Alchemy card (composite) but I do not have any other cards in the office to compare it to at the moment.

We are considering the Decklink Extreme.

Does anyone have any thoughts on this and the other cards in the Decklink and Aurora ranges?

Do any cards show better latency performance?

The images captured by the Miglia are very good (especially considering its cost) but would the Decklink be better?

I know most users are using SDI input cards but some of our users have a continuing need for composite input.

Having both options on the extreme makes sense.