> There are such things as USB monitors which actually take pixel data over the USB protocol DisplayLink. It caught on for a while at least, especially in the

> There are such things as USB monitors which actually take pixel data over the USB protocol DisplayLink. It caught on for a while at least, especially in the case of some dock products that would output to a more conventional display interface but were USB DisplayLink adapters themselves. You’ll see tons of forum and Reddit posts about suboptimal CPU load and performance related to it. https://en.wikipedia.org/wiki/DisplayLink https://en.wikipedia.org/wiki/DisplayLink It more recently was resurrected to overcome M1 limitations. https://danielcompton.net/apple-m1-displaylink-multiple-display https://danielcompton.net/apple-m1-displaylink-multiple-disp...