This BiXPower C28 connector one end is a MagSafe compatible connector for Apple MacBook computers made before mid 2012. The other end is a 5.5 x 2.5mm female jack that can plug into a 5.5 x 2.5mm male connector. In other words, this CNT-C28 connector can convert a 5.5 x 2.5mm male power connector to a MagSafe compatible power connector. This connector is compatible with: Apple Mac Book: MA254LL/A,
![BiXPower CNT-C28](https://cdn-ak-scissors.b.st-hatena.com/image/square/1f56e66737e56724ed8d11afdbc330230d881182/height=288;version=1;width=512/https%3A%2F%2Fwww.bixpower.com%2Fv%2Fvspfiles%2Fphotos%2FCNT-C28-2T.jpg)