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Yeah, you're good to go. I'm not sure why they specified the Macbook Air but all 2009+ Macbook/macbook pro's have the mini displayport.
 
LOL it's obviously a close up pic, are you serious? don't be so OCD
Trust me I don't have OCD like a lot of people in here do (oh no my mbp is so hot, omg my mbp is dead, omg omg my mbp is acting weird, omg my ~!@#$% hurts). Last time my sister bought one for me and she bought a different one and it didn't fit.

I was just paranoid if I ordered the same big one.
 
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