Pinout
Micro-HDMI (Type D, 19 pins) pinout

Pins
- 1: Hot Plug Detect
- 2: Utility / HEAC+
- 3: TMDS Data2+
- 4: TMDS Data2 Shield (GND)
- 5: TMDS Data2−
- 6: TMDS Data1+
- 7: TMDS Data1 Shield (GND)
- 8: TMDS Data1−
- 9: TMDS Data0+
- 10: TMDS Data0 Shield (GND)
- 11: TMDS Data0−
- 12: TMDS Clock+
- 13: TMDS Clock Shield (GND)
- 14: TMDS Clock−
- 15: CEC
- 16: DDC/CEC/HEAC Ground
- 17: SCL (DDC clock)
- 18: SDA (DDC data)
- 19: +5V Power
Specifications
| Contacts | 19 (numbered differently from Type A) |
|---|---|
| Contact pitch | 0.4 mm |
| Plug size | ≈ 6.4 × 2.8 mm |
| Video signals | 3 TMDS data pairs + 1 clock pair |
| Max bandwidth | Same as HDMI version: 10.2 Gbit/s (1.4), 18 Gbit/s (2.0) |
| +5 V pin | Pin 19, supplied by the source |
| Typical use | Raspberry Pi 4 / 5, action cameras, tablets |
| Not to confuse with | Mini-HDMI (Type C), a different 19-pin connector |
Notes
- Same 19 signals as full-size HDMI (Type A) above, but renumbered — Hot Plug Detect sits at pin 1 here, not pin 19, and +5V sits at pin 19, not pin 18. Do not reuse a Type A pin-number table against a Type D connector.
- What a Raspberry Pi 4/5 actually carries (both its ports), not full-size HDMI — and Mini-HDMI (Type C) is a third, separately-numbered 19-pin variant, not interchangeable with this one despite the shared pin count.







