I've rarely seen a graphics card that does not require additional power supply, yet so has a power. I bought it for my son, to upgrade his PC, an old AMD dual-core with HD3000 from Radeon, onboard. Since the new graphics card in it, most games run quite smoothly, except for very new, but that's another chapter. The fan never turned up loud and the Filius is happy. Not only looks stylish, but rather is for older PCIe PCs a real appreciation!