A:AnswerI think I used a different charger for my MacBook 2016. They keep changing the part that goes into the computer so you have to keep upgrading your accessories.
A:AnswerYes, perfect. The wires were beginning to be exposed on my 2015 11" MacAir, so I was told by Best Buy Empoyees to get this and it's exactly like my old one. Fits and works perfect.
Yes Yes
A:AnswerThe power adapter charges the unit quickly. You could even say with lightning speed. My MacPro was powerless and then I plugged it in and within minutes I was back in business.
A:AnswerI believe you're looking for an "Apple Power Adapter Extension Cable". They are available separately. If that is all you need, it is much less expensive than buying the entire power adapter. They are a little harder to find than the entire power adapter, but not impossible to find.