It only supports the 16+12pin Mac SSD to PCI-E 1X Host, (The adapter with SSD can't covert to USB or SATA enclosure);With Standard PCI Back Bracket.

Compatibility With 2013 MAC Pro A1493 A1502 ( MD864 MD865 MD293 Md294) SSD;Compatibility With 2013 MAC Pro retina A1398 A1502 (ME864 ME865 ME866 ME293 ME294) SSD;Compatibility With 2013 MAC Air A1465 A1466 ( MD711 MD712 MD760 MD761) SSD;

Compatibility With 2014 MAC Air A1465 A1466 ( MD711 MD712 MD760 MD761) SSD;Compatibility With 2014 MAC Pro retina A1502 A1398 (MGX72 MGX82 MGX92 MGXA2 MGXC2) SSD;

Compatibility With 2015 MAC Pro retina A1502 A1398(MF839 MF840 MF841 MGXA2 MGXC2) SSD;Compatibility With 2015 MAC Air A1465 A1466(MJVM2 MJVP2 MJVE2 MJVG2) and Mac Pro ME253 MD878 SSD;

The adapter only work for PCI-E 1X socket, It cannot convert to USB port or SATA port; The SSD must be 16+12pin contacts.