RoHS stands for Restriction of Hazardous Substances. RoHS, also known as Directive 2002/95/EC, originated in the European Union and restricts the use of specific hazardous materials found in electrical and electronic products (known as EEE). All applicable products in the EU market after July 1, 2006 must pass RoHS compliance. The substances banned under RoHS are lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (CrVI), polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four different phthalates (DEHP, BBP, BBP, DIBP). RoHS Aerocool XPredator, 500 W, 492 W, 100 W, 3.6 W, 12.5 W, 20 A Aerocool XPredator. Total power: 500 W, Combined power (+12V): 492 W, Combined power (+5V): 100 W. Motherboard power connector: 20+4 pin ATX, CPU power cable length: 55 cm, Cabling type: Non-Modular. Purpose: PC, Power supply unit (PSU) form factor: ATX, 80 PLUS certification: 80 PLUS Bronze. Product colour: Black, Cooling type: Active, Fan diameter: 12 cm. Compliance certificates: RoHS http://uk.hardware.info/reviews/6813/56-power-supplies-of-350-550-watt-review Because graphics cards and processor manufacturers have an increasing emphasis on keeping the power usage as low as possible, you do not need a lot more than 450 watt for your high-end system. Therefore we take a look at 56 power supplies in this test;... Unfortunately in this test most of the power supplies that we can recommend have a capacity of 550 watt. Between the 350 and 500 watt the offers are a lot less impressive, both in terms of quantity as well as quality. The problem seems to be that for th...