Silicon Power 64GB MicroSDXC Mac Expansion Card xDrive L13- Compatible with 13" MacBook Air/15" MacBook Pro (Retina Display) Storage Expansion Card for (1) MacBook Air 13" (Late 2010~Early 2015); (2) MacBook Pro 13" (Mid 2009~Mid 2012); (3) MacBook Pro 15" (Mid 2009~Mid 2012); (4) MacBook Pro 15" Retina (Mid 2012~Early 2013) Simple plug-and-play operation enables Macbook users to instantly expand storage space Ultra-fast data transfer rates up to Read/Write 90/60 MB/s One-fingertip-only operation, easy to remove without any tool