This is an apple macbook pro 13" (retina, early 2015 model). It has a 2.9 GHz dual-core intel core i5 processor, 16GB RAM, 512GB SSD. It has been upgraded to a clean install of MacOS Monterey it cannot be upgraded any further without some hacking. The battery has been replaced by Apple on April 24, 2021. The computer comes in its original box, with its power supply. Please note that I've used tape to strengthen the cord in a couple of places, as may be seen in the photos. This has been my spouse's primary machine since 2015, and they're upgrading to an M1 macbook pro now for professional reasons (needed more SSD space, processor and RAM were otherwise enough). Please only bid if you are within continental US, as I am unable to ship abroad or outside of the lower 48. Thank you for your interest!