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Two Elgato USB 3.0 in a Thunderbolt 3 dock - Can I connect two USB 3.0 capture in a thunderbolt 3 dock
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Divide  
#1 Posted : Saturday, February 23, 2019 9:04:08 PM(UTC)
Divide

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Hello, I want to know if it is possible to connect two or three captors of Elgato in a Thunderbolt 3 dock. I have three other URAY capturers for USB 3.0 and they work very well.
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mjgraves  
#2 Posted : Saturday, February 23, 2019 11:43:16 PM(UTC)
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Maybe. The details matter.

You haven't said which mode El Gato product. Some of their devices require a driver. If the one you choose needs a driver you may find that the driver only allows one to be used.

If it's a UVC class device, with no specific driver, this is not an issue.

Also, you haven't specified resolution. I'm not sure how much USB 3 bandwidth is available via a TB dock. If there's just one USB 3 channel you may find that you can't use more than one USB3 capture device. Especially at 1080p60 or beyond.

Remember that USB is only rated for 5 Gbps, but in reality delivers around 3.5 Gbps reliably. That's enough for one 1080p60 YUY2 stream.
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Divide  
#3 Posted : Tuesday, February 26, 2019 7:27:58 AM(UTC)
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I´m thinking in Elgato Camlink 4k, but only need 1080 - 50p
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grinsekatz01  
#4 Posted : Tuesday, February 26, 2019 10:14:07 PM(UTC)
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Does not work here, only 720 input with 2 camlinks 4k. Try to connect 1 per USB3 and the second one with adapter per Thunderbold. This way works for me with 2 4k inputs, but there is high latency (about 180ms).
Greets
Martin
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thanks 1 user thanked grinsekatz01 for this useful post.
mjgraves on 2/27/2019(UTC)
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