Install WD Blue M.2 SSD into MacBook Air mid 2012 - Björns Blog
SSD (7+17pin) to SATA 6.0Gbps Card converted into 3.5/2.5 inch SATA interface(22 pins) for Apple MacBook Pro 2012 Retina A1425 A1398 & Apple MacBook Air 2012 A1465 / A1466 / A1435 / A1436 - WIT Computers
MacBook Pro 13" Unibody Mid 2012 Hard Drive Replacement - iFixit Repair Guide