USB Mini-A is the host-side connector in USB OTG (On-The-Go) systems using the mini connector form factor. It has an asymmetric shape with one flat side and grounds the ID pin to signal host mode.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | VBUS | +5V power | PWR |
| 2 | D- | Data negative | BUS |
| 3 | D+ | Data positive | BUS |
| 4 | ID | Grounded = host mode | GND |
| 5 | GND | Ground | GND |
USB Mini-A is the host-side connector in USB OTG (On-The-Go) systems using the mini connector form factor. It has an asymmetric shape with one flat side and grounds the ID pin to signal host mode.