Install WD Blue M.2 SSD into MacBook Air mid 2012 - Björns Blog
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256GB SSD Replace THNSNS128GMFP For MacBook Air 11" A1465 13” A1466 Mid 2012 | eBay
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
How to Install a SSD in a 13-inch MacBook Air 2012 on Vimeo
OWC Launches 1 TB SSD Upgrade Kits for 2010-2012 MacBook Air - MacRumors