Install an SSD into the optical superdrive slot on a MacBook Pro | OSXDaily
1TB / 1000GB 2.5" SSD Solid State Drive for Apple MacBook Pro (15-inch, Early 2011) (17-inch, Early 2011) (13-inch, Early 2011) Laptops : Electronics - Amazon.com
Apple MacBook Pro with Retina Display (15-inch, 2014) review: Still the best higher-res laptop, but the competition is catching up - CNET
How to replace HDD/SSD in MacBook Late 2008 Aluminum | Mac Cheat Sheet
Solid-state drive - Wikipedia
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MacBook Pro Upgrade Guide
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Replace your 2009-2012 MacBook Pro HD with an SSD
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How to add a fast new SSD to your old Mac or MacBook for only $150 - 9to5Mac