Microsoft Surface Pro keyboard connector is a 5-pin magnetic pogo-pin connector on the bottom edge of Surface Pro tablets providing USB data, keyboard backlighting power, and pen data from Type Cover accessories.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | VCC | Power supply to Type Cover | PWR |
| 2 | DATA- | USB data negative | BUS |
| 3 | DATA+ | USB data positive | BUS |
| 4 | GND | Ground | GND |
| 5 | ID | Keyboard identification | I/O |