This power adapter is designed specifically for the Apple MacBook Pro Retina and has a maximum output power of 85W. It is brand new, sealed in the original packaging, and is an authentic OEM product. The MagSafe 2 connector ensures a secure and reliable connection to your laptop. This power adapter is compatible with all Apple MacBook Pro models that use the MagSafe 2 connector. Make sure to check your laptop's compatibility before purchasing.