Outdoor-focused Samsung 65-inch QLED listings commonly show an IP55 rating for dust and rain protection, anti-glare/matte screens, very high peak brightness (often 2000+ nits) for daylight visibility, and adaptive picture features that adjust brightness and contrast for shaded or changing outdoor conditions.
Across listings the number of HDMI ports typically ranges from 3 to 5. A common VESA mounting pattern shown on many models is 400 x 300 mm.