This laptop has been fully tested and refurbished by a professional technician.  It has had a operating system installed and tested. Please review the pictures carefully.  A power adapter is included. Please refer to the specs below.  Make: Dell Model: Precision 7520 Processor: Intel Core i7-6820HQ @ 2.70GHz Memory: 16GB  Hard Drive: 512GB NVME & 1TB HDD Battery: Yes - Fair Condition  Graphics Card: Nvidia Quadro M2200 Screen: 15.6" FHD 1920x1080 Missing Components: None Notes: Normal wear and light scratches.  30 Day Warranty.  Please feel free to ask any questions that you may have.  Thanks.