Up for sale is a 2011 MacBook Pro upgraded with 16 gigs of ram. This is my personal computer and has worked flawlessly over the years. However… has heavy signs of use as visible by the pictures. Battery even after all these years still works well and lasts for over an hour. If you were to put an SSD in this thing it can run blazing fast. Running macOS High Sierra. LOOK AT PICTURES FOR SIGNS OF WEAR/USE