Chieftec Polaris . Total power: 550 W, AC input voltage: 100 - 240 V, AC input frequency: 50 - 60 Hz. Motherboard power connector: 20+4 pin ATX, Motherboard power cable length: 25.6" (65 cm), SATA power cable length: 150,450 mm. Purpose: PC, Power supply unit (PSU) form factor: PS/2, 80 PLUS certification: 80 PLUS Gold. Product color: Black, Cooling type: Active, Fan diameter: 4.72" (12 cm). Compliance certificates: RoHS