Although the power supply units I am going to review today have different wattage ratings, ranging from 600 to 850 watts, they are all designed for an above-average computer configuration. A typical office or mainstream home PC (with an entry-level CPU and graphics card, one or two HDDs and an optical drive) is going to be perfectly satisfied with just a high-quality 400-watt PSU. So, I will be talking about products from four brands (two from Hiper and Scythe each, one Antec and one Enhance) which are meant for rather advanced configurations with high-performance CPUs and graphics cards. Those of them with the highest wattage ratings should even be able to cope with a gaming PC that has a multi-GPU graphics subsystem. But besides the wattage rating, there is the question of quality. That’s the issue I’m going to check out in this review.