Are any of the parts repairable
Besides the obvious, like the HD, Memory, Motherboard or CD drive, is any other part of this computer user repairable
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All of the older Unibody MacBook Pro's, in my opinion, are the most repairable and expandable! I own one and love it.
Most of the parts are servicable and avalable. It just gets into the cost and if the system was damaged how much needs to be replaced.
The newer Retina MacBook Pro's are less repairable as any defect in RAM requires a new logic board. But by the same token, the Unibody MacBook Pro's If banged just right can damage the RAM sockets at which point would require a new logic board. The newest 2016 and onward MacBook Pro's with Touch Bar have soldered RAM & SSD storage. So it's even more expensive a repair when you need to replace the logic board.
So in the case of the retina & Touch Bar models you are limited to the amount of RAM based on what you bought day one. In the case of the Unibody MacBook Pro's the newer 2011 & 2012 support up to 16 GB of RAM which can be added in later if your needs change as well allowing you to spread the costs out.
In the case of storage, the older MacBook Pro's can support a 4 TB 2.5" SATA III (6.0 Gb/s) SSD. While the newer retina and newer systems have faster I/O SSD storage they can't support more than 2 TB of storage on Apple's custom blade SSD's
The 2012 15" Unibody 2.7 GHz Intel Core i7 system is still a powerhouse of a CPU. While the newer 2017 Kaby Lake 2.8 GHz based Touch Bar MacBook Pro is not that much more powerful, and the top of the line 4.1 GHz is where you'll see the most bang. But do you need such a powerful system for what you do?
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