... over 72 percent 4.Comply with all voltage countrgwide. 1. 500W 24pin computer power supply with big fan, computer power supply ... supply, 350W power supply, 400W power supply, 450W power supply. 500w power supply, 550w power supply, 600w power supply.2. Electronic ... fan7. in PE bag package or in colour box package. 500W 24pin computer power supply with big fan