This product is either discontinued or we cannot get that from suppliers.
Desktop Drives TS480GJDM500, 570 MBps (read) / 460 MBps (write), USB 3.0, 1 x USB 3.0 cable - external, 32 °F, 158 °F, Apple MacBook Air (Late 2010) (13.3 in); (Mid 2011).
Introducing our new JetDrive SSD upgrade kit for the MacBook Air and MacBook Pro with Retina display. Complete with tools, instructions, and a slick aluminum USB 3.1 Gen 1 enclosure to house your original SSD.