SFX-300W Retail - The SFX power supply from ARGUS with 82+ The SFX-300W is the ideal SFX power supply for desktop systems with special performance requirements. The power supply convinces by a multitude of connection possibilities and offers with the additional PCIe 6+2pin connector the possibility to supply a separate, power-hungry graphics card. With efficiency values of over 82+, the SFX-300W reduces your wallet while protecting the environment.