A:AnswerIt works for mines and I believe my Mac Book Air is a 2015. As long as you have a Mini Display-Port it will work. Because this turns that into an HDMI one.
A:AnswerNo it will not. It will work with the MacBook Pro 13” and 15” from early 2015, but not with the 12” model. You would need a USB-C to HDMI cable for that. Similar to this, but different connector to the MacBook 12”.
A:Answeryou will need a hdmi cable. this adapter has a female hdmi connect. so a hdmi cable with male style at both ends, NOT a hdmi extension(which would have a male AND female).
A:Answersome one at the store should be able to answer that better than a customer. If they don't know I'd go somewhere else...most employees don't know much about the products they sell....Customer service is going by the wayside....