Amazon.com: Valley Of The Sun Original GDDR5 4GB Graphics Video Card Replacement, for Dell Precision M7520 M7510 M4800 HP Zbook 15 G3 G4 Workstation Laptop, Nvidia Quadro M1200 M1200M N17E-Q1-A1 GPU Repair
FOR DELL 5520 7720 Nvidia Quadro M1200 4GB N17P-Q1-A2 Video Graphics Card 0RD3JG | eBay
FOR DELL 5520 Nvidia Quadro M1200 4GB Video Graphics Card 0RD3JG 100% Test Work | eBay