Please recommend BOX for DeckLink Quad 2

Have you considered that people don't hang out the whole day here.. You are bashing people that they did not respond within a few hours of posting your request..

Also consider that there are not a lot of people here that use an external box to put the capture card in. Most capture cards are put inside a desktop machine. Or are external capture devices like UltraStudio ready to go..

A quick 2 minute search on the BMD forum gave a lot of awnsers..
viewtopic.php?f=4&t=68247&p=382047&hilit=external+pcie#p382047
viewtopic.php?f=12&t=52662&p=303816&hilit=external+pcie#p304465
viewtopic.php?f=18&t=65072&p=367016&hilit=external+pcie#p367016
viewtopic.php?f=21&t=63817&p=361263&hilit=external+pcie#p361263

No reply is also a reply. Ok, I see it with positively undefinedness and ordered one. No, I also will not share my experience. All the best!

...and lets keep it this way.

In fact there is a huge underground movement to not reply to any questions from anyone named
"Johannes Hinterberger" Its been going on for years. I'm surprised it took him this long to figure it out.

Pal you need to get a life, you are being completely unrealistic in your expectations to expect a full reply in under 6 hours. It looks to me as though the community is best off without you.
Good luck in your project