If you want to know how to connect two monitors together via DisplayPort, you need several monitors equipped with both a DisplayPort In and DisplayPort Out port. Many monitors only come with a single DisplayPort In port, but you also need a DisplayPort Out for the “middle of the chain” monitors.
Can you use DisplayPort and HDMI for dual monitors?
If they each have another HDMI connection, you can use that. You might also be able to run a DisplayPort cable between both devices. Sometimes, though, you’ll have a mix of available connections between the PC and monitor. It’s common to have to run DisplayPort from the PC to HDMI on the second monitor.
Should I use HDMI or DisplayPort for second monitor?
If you have the choice between DisplayPort 1.4 and HDMI 2.0, DisplayPort would be the better option. In other cases, if a monitor only gives you the choice between, say, HDMI 2.0 and DisplayPort 1.2, HDMI could be the way to go for the HDR support, as long as all your devices support the HDMI version in question.
How many monitors can you run on DisplayPort?
DisplayPort 1.3 and 1.4 can daisy chain DisplayPort monitors up to 4K resolution, though only two of them at the highest resolution and only at 60Hz (even though DisplayPort does support higher refresh rates). They could do up to six 1080p daisy chain monitors, however.