single card, check this out
3x display port + 3x HDMI
https://www.amazon.com/Gigabyte-GeForce-Windforce-Graphics-GV-N2070WF3-8GC/dp/B07JBTS8HR/ref=sr_1_fkmrnull_1?keywords=gigabyte+AORUS+GeForce+RTX+2070+8G+8GB&qid=1551511371&s=gateway&sr=8-1-fkmrnull
overall that's what I've found, maybe there are cheaper options out there, dunno