set2: 1 x Hard Drive Holder + 1 x Converter(The SDD is not include)The product only support 2012 version Apple MacBook Air 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 MAC OS or Windows operating system.Notice:The adapter card only support 22 x 42 mm,22 x 60 mm and 22 x 80 mm size of M.2 NGFF (SATA) SSD,it does not support PCIe X2 or PCIe X4 transfer 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 apple laptop,Such as the use Sand-Force main control chip of solid-state drives, If it is installed on the Apple computer, The computer will be crashed,or can't install the operating system, or unable to format the hard disk failure, etc.Please open the trim function after Mac OS installed, it does not need to manually open if install Windows operating system.About MacBook Air SSD interface standard: 2010 and 2011 version MacBook Air SSD is 6+12 pin, only one side have contact,size is 109 mm x 24 mm.It's SATA interface. 2012 version MacBook Air SSD is 7+17 pin,size is 109 mm x 24 mm.2012 version MacBook Pro SSD is 7+17 pin, size is 89 mm x 33 mm.It's SATA interface. 2013 and 2014 and 2015 version MacBook Air SSD is both side have contact,one sid is 16+12 pin,the other side is 11+14 pin,size is 89 mm x 24 mm.It's PCIe X4 interface.PCB size(L x W):10.80 x 2.40cm/4.25 x 0.94 inchMaterial: Metal/PCColor: BlackDescription:2.5 Inch SSD HDD to 3.5 Inch Metal Mounting Adapter Bracket Dock Hard Drive Holder for PC Hard Drive EnclosureFeature:1. Easy to install SSD/HDD to bracket.2. Suitable for any standard PC chassis.3. It willnot be suitable for Samsung EVO drive.4. Precision mold stamping, consistency, easy installation.5. Metal mold, no distortion, fast heat dissipation, maximum protection of hard disk.6. Compatible with SATAI SATAII SATAIII.7. Adapter design is suitable for 2.5 inch SSD/HDD to 3.5 inch.8. Support 2.5 inch hard drive, such as SATA, IDE or SSD driver.9. There is no screw design between the bracket and the ordinary mechanical hard disk SSD solid state drive.10. The inner side of the bracket has four inner columns corresponding to the four screw holes on the side of the hard disk, which fastens the hard disk and is very stable.11. The bracket is suitable for the 3.5 inch hard disk position of the ordinary desktop computer mainframe, and any device that can support 3.5 inch hard disk can use this bracket.Size: 115 x 100 x 12mm/4.52 x 3.93 x 0.47 inchNote: NOT Included SSD/HDD.Package contents:1 x Hard Drive Holder8 x Screws1 x Converter(The SDD is not include)Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.