MagSafe 2 is a thinner Apple proprietary magnetic charger used on Retina MacBook Pro and MacBook Air from 2012 to 2015. The slimmer profile accommodates the thinner MacBook chassis while carrying up to 85W.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | GND | Ground outer contacts | GND |
| 2 | GND | Ground outer contacts | GND |
| 3 | VCC | DC power center | PWR |
| 4 | ID | Adapter identification 1-wire | BUS |
| 5 | ID | Adapter identification 1-wire | BUS |
MagSafe 2 is a thinner Apple proprietary magnetic charger used on Retina MacBook Pro and MacBook Air from 2012 to 2015. The slimmer profile accommodates the thinner MacBook chassis while carrying up to 85W.