Apple MacBook 13" A1278 Laptop, Intel Core i5 - 120 GB SSD 12G B Ram Memory  OS 10.15.1 Catalina Unsupported (2011) Note - Catalina Unsupported is a modified program to work on older MacBook before  2011, as the program takes longer to open after opening it works fine. The program  allows you to download apps that you were no longer able to download. Model: MacBook Pro A1278 Processor: 2.40 GHz Dual-Core Intel Core i5 Memory: 12 GB Storage: 120 GB SSD  Battery Condition: Used battery Health Normal Power Adapter: Brand-new replacement Screen Condition: Looks good  Keyboard: Work good with backlight Overall Condition: This Laptop shows normal signs of use it is in good condition has been  tested clean inside and outside and has been install a flesh Mac OS 10.15.1 Catalina.