Transcend 128GB JetDrive Lite 360 Storage Expansion Card for 15-Inch MacBook Pro with Retina Display (TS128GJDL360) 128GB (MLC) Storage Expansion Card for MacBook Max Read: 95MB/s, Max Write: 60MB/s For MacBook Pro with Retina display 15" (Late 2013 - Mid 2015) Compatibility with Mac OS X 10.11 El Capitan is currently under verification New Update JetDrive Toolbox (v1.14.3)