Pinout
HDMI (Type A, 19 pins) pinout

Pins
- 1: TMDS Data2+
- 2: TMDS Data2 Shield (GND)
- 3: TMDS Data2−
- 4: TMDS Data1+
- 5: TMDS Data1 Shield (GND)
- 6: TMDS Data1−
- 7: TMDS Data0+
- 8: TMDS Data0 Shield (GND)
- 9: TMDS Data0−
- 10: TMDS Clock+
- 11: TMDS Clock Shield (GND)
- 12: TMDS Clock−
- 13: CEC
- 14: Reserved (N.C. on most devices)
- 15: SCL (DDC clock)
- 16: SDA (DDC data)
- 17: DDC/CEC Ground
- 18: +5V Power
- 19: Hot Plug Detect
Specifications
| Contacts | 19 |
|---|---|
| Video signals | 3 TMDS data pairs + 1 clock pair |
| Max bandwidth | 10.2 Gbit/s (1.3/1.4), 18 Gbit/s (2.0), 48 Gbit/s (2.1) |
| Max video | 4K 30 Hz (1.4), 4K 60 Hz (2.0), 4K 120 Hz / 8K 60 Hz (2.1) |
| +5 V pin | Supplied by the source, at least 55 mA |
| DDC | I2C, EDID at address 0x50 |
| Hot Plug Detect | Driven high by the sink when connected |
| Typical use | TVs, monitors, PCs, Raspberry Pi 3 and earlier |







