The product only support 2012 version model is A1465 A1466 (MD223 MD224 MD231 MD232).The speed and other properties is not changed,only form conversion interface. Adapter card + M.2 NGFF SSD can replace original hard disk,also installed the OS or . PCB size(L*W):10.80*2.40cm/4.25*0.94 inch Notice:The adapter card only support 22*42 mm,22*60 mm and 22*80 mm size of M.2 NGFF (SATA) SSD,it does not support PCIe X2 or PCIe X4 fer mode of solid state drives.This product is not supported on both sides have electronic components solid-state drives. Some of M.2 NGFF SSD is not compatible with laptop,Such as the use Sand-Force main control chip of solid-state drives, If it is installed on the computer, The computer be crashed,or can't install the , or unable to format the hard disk failure, etc.Please open the trim function after OS installed, it does not need to manually open if install . Colour: Black Material: PC　 Quantity:1Pc Package Contents: 1 * Converter(The is not include) About M.2 NGFF SSD interface standard: Socket 2(B +M key):there are SATA(such as THNSNH128G8NT/ THNSNH128GDNT/MZNTD256HAGM models of SSD) and PCIe X2(such as -AG128M6E/-AG128M6E/SD6PP4M models of SSD) two different fer mode. Socket 3(M key):PCIe X4(such as MZHPU128HCGM and MZHPU512HCGL models of SSD) fer mode. About SSD interface standard:　 2010 and 2011 version SSD is 6+12 pin, only one side have  contact,size is 109 mm*24 mm.It's SATA interface. 2012 version SSD is 7+17 pin,size is 109 mm*24 mm.2012 version Pro SSD is 7+17 pin, size is 89 mm*33 mm.It's SATA interface. 2013 and 2014 and 2015 version SSD is both side have contact,one sidis 16+12 pin,the other side is 11+14 pin,size is 89 mm*24 mm.It's PCIe X4 interface. 2013 and 2014 and 2015 version Pro SSD is both side have contact,one sid is 16+12 pin,the other side is 11+14 pin,size is 89 mm*33 mm.It's PCIe X4 interface. Only