Chieftec SFX-250VS. Total power: 250 W, AC input voltage: 230 V, AC input frequency: 50 Hz. Motherboard power connector: 20+4 pin ATX, Cabling type: Non-Modular. Purpose: PC, Power supply unit (PSU) form factor: SFX. Product color: Silver, Fan diameter: 3.15" (8 cm), Number of fans: 1 fan(s). Certification: UVP; OVP; SCP; OPP; AFC;