Chieftec BDK-550FC. Total power: 550 W, AC input voltage: 100 - 240 V, AC input frequency: 47 - 63 Hz. Motherboard power connector: 20+4 pin ATX, Motherboard power cable length: 25.6" (65 cm), SATA power cable length: 150,500 mm. Purpose: PC/server, Power supply unit (PSU) form factor: ATX, 80 PLUS certification: 80 PLUS Bronze. Product color: Black, Cooling type: Active, Fan diameter: 4.72" (12 cm). Compliance certificates: CE, RoHS, Certification: EAC FCC CB