High Definition Multimedia Interface (“HDMI”) is a high-speed interface for audio & video data. This newer, improved technology is replacing the use of VGA connections which can only transfer video signals (and at a slower rate).
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1. Connectors
HDMI connectors are used for PC’s, laptops, monitors, televisions, data projectors, DStv decoders, PlayStations and more.
The HDMI connectors and sockets are “keyed”, and the cable is bi-directional (can be plugged in either way around).
2. VGA vs HDMI
| VGA | HDMI | |
|---|---|---|
| Bi-directional | ✓ | ✓ |
| Video signal | ✓ | ✓ |
| Audio signal | ✗ | ✓ |
| Hot-swappable | ✗ | ✓ |
| Cable length | Shorter | Longer |
| Cost | Inexpensive | More expensive |