Chieftec Smart 300W. Total power: 300 W, AC input voltage: 115 - 230 V, AC input frequency: 47 - 63 Hz. Motherboard power connector: 20+4 pin ATX, Motherboard power cable length: 11.8" (30 cm), SATA power cable length: 150,350 mm. Purpose: PC/server, Power supply unit (PSU) form factor: TFX, 80 PLUS certification: 80 PLUS Bronze. Product color: Gray, Cooling type: Active, Fan diameter: 3.15" (8 cm). Compliance certificates: RoHS