This is an Apple MacBook Air Mid 2011, 11-inch model. macOS High Sierra has been newly installed. A protective film is applied to the LCD screen. Here are the basic specifications: CPU: Intel Core i5 1.6GHz Memory: 4GB Storage: SSD 128GB Keyboard: US layout Although there is no charger, I will include a USB Type-C adapter cable that I used for power. You can power and charge the device without any problems with a 45W USB adapter. There are scratches and small dents, so please understand this before purchasing. You can log in with the ID/PASS: test. Please change the settings as needed after purchase.