HDMI (High-Definition Multimedia Interface)
The most common digital AV connector in commercial and residential systems.
Versions
- HDMI 1.4: 4K@30Hz, ARC
- HDMI 2.0: 4K@60Hz, HDR
- HDMI 2.1: 8K@60Hz, 4K@120Hz, eARC, VRR
Max Cable Length
- Passive: ~5m (4K60) to ~15m (1080p)
- Active Optical (AOC): up to 100m+
- HDBaseT extenders: up to 100m over Cat6
Common Uses in AV
- Display connections (projectors, screens, monitors)
- Source devices (laptops, media players, cameras)
- Switchers and matrix systems
Key Considerations
- HDCP compliance required for protected content
- EDID management critical in multi-display systems
- Always specify "Premium High Speed" or "Ultra High Speed" cables for 4K60+