What graphics card should I buy for just a HDMI Output? - Quora
Quad HDMI PCIe Video Capture Card – ELECABLE
Amazon.com: HDMI Video Capture Card, 4K HDMI to USB Capture Card Full HD 1080P 30fps, Record via DSLR, Camcorder, Action Cam for Live Streaming, Compatible with Nintendo Switch, PS4, Xbox One, PC :