Will the 85W work for the first generation 17' Mac Book Pro?

Apple 45W MagSafe Power Adapter for MacBook Air

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    The new 85W will work with the first generation 17" MacBook Pro. I personally own a first gen 2.16 Core Duo 17" MacBook Pro. I currently own TWO, NEW 85W power adapters with the L-shaped MagSafe plug, and both work.

    While the 85W adapter is slightly smaller than the previous T-shaped adapter, it is still an 85W power adapter. There is an even smaller 65W power adapter that will not work on the 17".

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  • No. The newer metal grey MagSafe connector which has the cable in line with the body of the connector is slightly smaller than the older white plastic MagSafe connector where the cable sticks out at 90 degrees. Make sure you buy the same type as the original adaptor that came with your Mac. Use part number MA938B for the old-style adaptor.

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  • Yes, it should work with out any issue, they have designed the power adapter the same up until 2012 MacBook Pro with retina display and 2012 macbook air.

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