I need 4k30p source and try USB elgato HS60+ (4k). It work as source but laggy. Tested on macbook pro 2017, macbook air m1. As Oliver said - usb is bottleneck for 4k
Does anyone test Magewell Pro Convert HDMI 4K Plus to NDI Converter?
is NDI source is more comfortable for M1 ot Intel than any usb capture card as UVC?