Laptop Dell Precision 5520, Intel Core i7 7820HQ 2.9 GHz, nVidia Quadro M1200 4 GB GDDR5, WI-FI, Bluetooth, WebCam, Display 15.6" 3840 by 2160 4K TouchScreen, 16 GB DDR4; 1 TB SSD M.2 NVMe; Windows Optional, Second Hand