7/14/2023 0 Comments Vmix laptops![]() ![]() You intended to use vMix as your editing/production/streaming tool. Now if the hdmi capture device also has some type of data compression then there is not so much pressure to move all of that data over the USB3 interface. That's great for what you need today (just according to the physical constrains of the external cabling). Just looking at the numbers, if you could find an external hdmi capture card that connects via USB3 (blue connector) at most it would only support 2 hdmi inputs. A single USB3 interface (the blue usb connectors) has a maximum of 5Gb/s. Well what my concern is (not speaking as an expert on anything) is the hdmi bandwidth (speed at which the hdmi signals travel over the cable) for 480p 60fps 8 bit color consumes about 740Mb/s, if you use 720p 60 fps 8 bit color then you consume 2.23 Gb/s of bandwidth.
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