- You cannot add "Asus Tuf Gaming A15 (FA506IV) - 4000 Series AMD Ryzen 7 4800H (2.90 GHz) - 8GB RAM - 512GB SSD - 6GB NVIDIA RTX 2060 Graphics - Backlit KB - 15.6 FHD IPS DISPLAY - Windows 10 - Fortress Gray Notebook" to the cart because the product is out of stock.