Apple MacBook Pro 13" inch  a1278 OS 12.6.2 Monterey with 16GB memory & 500GB SSD, DVD/CD Drive WORKING see the about section photo for  list of options. Also installed software VLC,Google Chrome,Airmail,MS Excel,MS OneNote,MS Outlook,MS PowerPoint, MS Word, OneDrive & CleanMyMac oh before i forget Adobe Acrobat DC full version not reader. Only one issue I used system with Bluetooth speakers since speakers are not loud enough for me. But a very reliable system,.I have new battery installed and charger with laptop.