Advice from an Apple Tech: How to replace the optical drive in a Unibody MacBook Pro with a second hard drive | Macworld
Ultimate Guide on How to Upgrade Mid 2012 MacBook Pro: Faster and Better Than New! | College Lighthouse
How To Add Second A SSD to Replace Optical Drive MacBook Pro 2012 - YouTube
2012 Macbook Pro 13" A1278 DVD Super Drive Replacement - YouTube
How to Replace MacBook Pro Optical Drive with SSD: EveryMac.com
Amazon.com: 2nd SATA HDD SSD Hard Drive DVD CD ROM Optical SuperDrive Caddy Tray Frame for Unibody MacBook / MacBook Pro 13 15 17 Early mid Late 2008 2009 2010 2011 2012 : Electronics
MacBook Pro (Howto): Install A Solid-State-Drive
Apple Adding Last MacBook Pro With CD Drive to Vintage Products List - MacRumors
OWC Data Doubler: Get 2 Drives in your MacBook Pro
How to Replace MacBook Pro Optical Drive with SSD: EveryMac.com
Macbook Pro Mid 2012 SSD Upgrade - YouTube
Installing MacBook Pro 13" Unibody Mid 2012 Dual Hard Drive - iFixit Repair Guide
Upgrade Your Macbook Pro (SSD Upgrade, RAM Upgrade, Optical Drive Bay Adapter) - YouTube
Mid 2012 MacBook Pro Hard Drive Cable Failure (821-1480-A, 821-2049-A, 821-2480-A) | BeetsBlog
MADLAWMEDIA— Turn Your MacBook Pro (Mid-2012) into a Super Machine
Replacing a MacBook Pro optical drive with a SSD: stripped screws a-plenty – Kev's Development Toolbox
How to upgrade a Mid-2012 Macbook Pro to SSD | David Artiss
Why the 2012 non-Retina MacBook Pro still sells – Marco.org
How to Replace MacBook Pro Optical Drive with SSD: EveryMac.com
OWC Data Doubler - Replace Mac Optical Drive with an SSD
MacBook Pro 15" Retina Display Mid 2012 SSD Replacement - iFixit Repair Guide
OWC Data Doubler Optical Bay Hard Drive/SSD... at MacSales.com
Installing MacBook Pro 15" Unibody Mid 2012 Dual Hard Drive - iFixit Repair Guide
