THANKS FOR LOOKING. THE ITEM FOR AUCTION IS A USED APPLE MACBOOK  MODEL A1534 NOTEBOOK COMPUTER. THE SPECIFICATIONS ARE LISTED ABOVE. THE UNIT IS IN GREAT WORKING CONDITION. ALSO OFFICE 2019 IS INCLUDED. THE BATTERY DOES NOT HOLD A CHARGE. THERE IS NO AC ADAPTER INCLUDED. TWO UNITS AVAILABLE. ONE HAS CATALINA AND THE OTHER HAS SIERRA OPERATING SYSTEM.  JUST LOOKING FOR A NEW HOME. HAPPY BIDDING.