4 Things to Know About the ASUS PN80's Quad 4K Display Support
Four independent 4K displays The PN80 drives four separate 4K monitors without daisy-chaining or using DisplayPort MST splitters.
Two HDMI 2.1 ports Two of the four display outputs are HDMI 2.1, supporting high-bandwidth 4K video.
Two USB4 Type-C ports with DisplayPort Alt Mode The remaining two outputs are USB4 Type-C ports that handle DisplayPort Alt Mode, enabling direct 4K output.
No special adapters required Each display connects directly to its own port, making setup straightforward.