A:Answer HDMI port 1 is 2,0 and ports 2, 3, and 4 are 1.4. "HDMI Version: Port 1 supports: v.2.0; Ports 2-4 supports: v1.4
HDCP Version Ports 1 supports: v2.2
HDMI 1 Tech Spec 600MHz pixel clock rate: 2160p@60fps, 4:4:4, 8-bit | 2160p@60fps, 4:2:2, 12-bit 2160p@60fps, 4:2:0, 12-bit
HDMI 2-4 Tech Specs 340MHz pixel clock rate: 2160@60fps 4:2:0 8 bit"