What we'll call workstation-class PCs are those on the market today that demand a PSU with outlandish output power, rail options and cabling runs to suit. You'll know instantly if you need one, and the likely spec. of such a PC means that you have the money to spend to grab a supply like those on test today. So to help you choose one from many, we've nabbed over half-a-dozen PSUs with high-end aspirations and subjected them to our test equipment. Read on to see what we found out.