... big fan, super quiet, quiet and comfortable. Maximum output power 420W, built-in PFC, magnetic amplifier circuit; Black case ... aging, 100% ATE test; 20PIN +4 PIN (motherboard power supply), large 4PIN Interface 4 (parallel port CD-ROM drive ... (serial port CD-ROM drive power) With six heavy protection: overcurrent, overvoltage, undervoltage, over power, over temperature, short circuit; China Compulsory ...