Features: Type:PCI-E 4X Converter Adapter Card This product is only applicable to Apple 2013 2014 2015 version of Air, Pro, etc. About the following models For 2013 Macbook Pro A1493 A1502 MD864 MD865 MD293 Md294 SSD For 2013 MacBook Pro retina A1398 A1502 ME864 ME865 ME866 ME293 ME294 SSD For 2013 Macbook Air A1465 A1466 MD711 MD712 MD760 MD761 SSD For 2014 Macbook Air A1465 A1466 MD711 MD712 MD760 MD761 SSD For 2014 MacBook Pro Retina A1502 A1398 MGX72 MGX82 MGX92 MGXA2 MGXC2 SSD For 2015 MacBook Pro Retina A1502 A1398 MF839 MF840 MF841 MGXA2 MGXC2 SSD For 2015 MacBook Air A1465 A1466 MJVM2 MJVP2 MJVE2 MJVG2 and Macbook Pro ME253 MD878 SSD New SSD is a PCI-e 4x interface. The SSD is connected to the computer through a PCI-E 2.0 X4 or X8 or X16 interface that is, a PCI-E graphics interface. Before making a purchase, make sure your machine does not have this interface, No words can not be used. Apple's new interface SSD through the computer's PCI-EX4 or X8 or X16 interface adapter, enter the operating system can be correctly identified, the common computer is not visible in the BIOS, it does not support system startup, unless your computer Motherboard BIOS supports PCI-E device startup Z77 motherboard with WIN7 or WIN8 system installation disk, the installation can be identified, you can partition, but after copying the system file reboot, can not find the hard disk, because the machine's BIOS startup item there is no PCI-E hard disk option, This is not a riser card problem, because the previous machine BIOS does not support the PCI-E device is started, some servers can support startup. Package List: 1 x PCI-E 4X Converter Adapter Card for Apple MacBook Air Pro SSD