Screen Size: 14.5 - 16.9 inches CPU Type: Core i5 OS: Other Memory: 4-7GB HDD Capacity: Up to 499GB It also has a D-SUB port and printer port. This is a laptop with a DVD drive. The OS is the rare Windows 7. The battery is mostly dead, but it can be used normally with the AC adapter. The AC adapter is included. It's a 19V adapter from NEC. Startup and OS operation have been confirmed. Drive and other operations have not been confirmed.