Fitting an M.2 SSD to the MacBook Air (2012) - YouTube
MacBook Pro 13" Retina Display Late 2012 SSD Replacement - iFixit Repair Guide
How to Upgrade & Replace an SSD in MacBook Air | OSXDaily
Amazon.com: GODSHARK 7+17 pin mSATA to A1398 A1425 (2012 & Early 2013) Adapter for MacBook Pro Retina SSD Replacement, Mini PCIe SATA SSD Converter Card : Electronics
SSD Upgrade Kits for MacBook Air 2012
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Teardown of Mid-2012 MacBook Air Reveals Tweaked SSD Connector - MacRumors