Complex sentence: Due to this ruling Nvidia is facing a U.S. import ban on some of its chips used in the nForce, Quadro, GeForce, Tesla, and Tegra series graphics products--nearly every video card type manufactured by Nvidia.
Split into simpler sentences: Due to this ruling Nvidia is facing a US import ban on some of its chips. The chips facing the US import ban are used in the nForce, Quadro, GeForce, Tesla and Tegra series graphics products, nearly every video card type manufactured by Nvidia.