THREE COLOUR DOGFISH SSD for MacBook Air 2012 A1465 (EMC 2558), A1466 (EMC 2559)

[IMPORTANT NOTE] Before removal, Back up your original data to USB drive; and Updated your old original SSD to mac OS 10.13 High Sierra or Later version. If not, the new SSD will not be recognized after replacement.If your mac does not recognize the drive, then back to the step. [Reinstall MacOS] 3 ways to install macOS: From Time Machine Backup; Make USB Installer;From Internet Recovery. You can check some video on Amazon, or check our installation manual in listing documents, or there are simple steps in the product description below. Remember to Reformat(Erase) the new SSD before Restore the MacOS. [SSD for MacBook Upgrade]: Replace the SSD to increase the capacity and processing speed up to 550MB/s. Perfectly compatible with MacBook Air 2012 A1465 (EMC 2558), A1466 (EMC 2559). Note: Model & EMC needs both match with our list, then will work, or will not work. [High Speed & Safety] With storage options 256GB, 512GB, 1TB for you, NVMe PCIe SSD read speed up to 2500 MB/s, write speed 1800 MB/s . Faster boot times, faster application loading times and better system responsiveness. With the Encryption program, protect your data safely. [Warranty] We provide 5 Years warranty and lifetime tech support, if there are any problems with the Macbook SSD drive, please contact us freely and we will give you a satisfied solution. Dogfish Macbook SSD is Safer & Faster for your macbook upgrade!