The M.2 NGFF SATA KEY B+M SSD to 2012 MACBOOK PRO Retina adapter card is used to convert your M.2 NGFF SSD as 2012 MACBOOK PRO Retina for IMAC A1398 MC975 MC976.
Fits the following models the Apple 2012 MACBOOK PRO laptop and IMAC :
Size is same as 2012 pro SSD: 89x32.5mms.
Plug and play, no need drivers
No additional power required.
Can support sizes : Type 2230, 2242, 2260