Corsair vs series 550 watt power supply the vs series competes well in emerging markets and offers a high quality name with 85 efficiency at affordable pricing the vs series offers many upgrades from traditional designs it is black with black cable sleeving and black connectors offers a large diameter thermally controller fan and is nearly silent when running at idle product features at least 85 efficient 80 plus white 230v eu certified corsair engineering and quality control 120mm