Macbook Pro 2016 and 3 live cams

I was hoping that I could run 3 live cameras via BM Mini recorders into Wirecast 7 with the new laptop, but I could only get two cameras to show. So, I connected a 3rd cam to a Belkin Hub and connected to the mac with the thunderbolt 3 adapter and bingo... the 3rd cam is live. I'm disappointed that the new laptop can't run the 3rd cam on its own. Has anyone had success. This would make a sweet , neat 3 camera setup.

Rob Munzing

Munzing Media

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  • Get you one of these. I use 4 webcams everyday. The USB "bus" on the MacBooks just can't handle the bandwidth required.


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  • If you're using one of the new four Thunderbolt 3 port 15" MBP,  a couple of other are reporting the same thing (only 2 show up). Neither Apple or Blackmagic have clarified the cause though. You may want to contact Blackmagic about this as well as Apple.


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  • Ben Forder I believe was having this issue as well.

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  • CraigS  I know this post is old, have anyone tried a Thunderbolt Box form Sonnent with a capture card in it?

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  • George E. Kennedy, Jr Informally Magewell as told me they've use Sonnet Echo Express SE Thunderbolt 3 with four input HDMI and SDI cards without issue on a new 15"  MBP.

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  • CraigS  Thanks, Craig. I have a Sonnet Echo Express SE Thunderbolt 2 Box and my Thunderbolt 3 upgrade card will be here Monday. Will test with a Decklink Quad and 3 SDI Cameras and give some feed back. 

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  • George E. Kennedy, Jr Looking forward to hearing about your tests. You're welcome of course.

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