Dell Precision 7720 Disassembly and SSD, RAM Upgrade Guide
Amazon.com: Dell Precision M7720 7720 Mobile Workstation, 17.3in HD+ (1600x900) LCD, Intel Xeon E3-1505M v6, 64GB DDR4 Ram, 512GB SSD, NVIDIA Quadro M1200 Graphics, Windows 10 Professional (Renewed) : Electronics
Dell Precision M7720 7720 Mobile Workstation, 17.3 HD (1600 x 900) LCD, Intel Core i7-6920HQ, 16GB DDR4 Ram, 512GB SSD, Radeon Pro WX 4130 Graphics, Windows 10 Professional (Renewed)