be quiet! System Power 11 550W power supply unit 20+4 pin ATX ATX Black

On/off switch: Yes | Number of fans: 1 fan(s) | Depth: 86 mm | Power protection features: Over power | Fan diameter: 12 cm | Peripheral (Molex) power connectors (4-pin): 1 | Weight: 1.92 kg | Power protection features: Short circuit | Power protection features: Over voltage | Power protection features: Overheating | Cooling type: Active | Product colour: Black | Package type: Box | Input current: 4 A | AC input voltage: 200 - 240 V | Power factor: 0.98 | Height: 140 mm | Package weight: 2.3 kg | Cabling type: Non-Modular | Package height: 97 mm | Shipping (inner) case height: 21.8 cm | Noise level: 24.2 dB | Package width: 195 mm | Width: 150 mm | Shipping (inner) case length: 55.6 cm | ATX version: 3.1 | Products per shipping (inner) case: 6 pc(s) | Power supply unit (PSU) form factor: ATX | Shipping (inner) case width: 31.1 cm | Total power: 550 W | PCI Express power connectors (6+2 pin): 2 | Screws included: Yes | AC input frequency: 50 Hz | Efficiency: 89.7% | Power protection features: Surge & inrush | Purpose: PC | Package depth: 268 mm | 80 PLUS certification: 80 PLUS Bronze | Mean time between failures (MTBF): 100000 h | Power protection features: Under voltage | Power protection features: Over current | Shipping (inner) case gross weight: 14.9 kg | Max output current (+12V1): 45.83 A | Max output current (+5Vsb): 3 A | Combined power (+5V): 120 W | Hold time: 16.86 ms | Bearing technology: Rifle | EPS version: 2.92 | Combined power (+12V): 550 W | Combined power (+3.3V): 120 W | Fan speed: 0 - 1800 RPM | Sustainability certificates: ENERGY STAR | Sustainability certificates: ErP | Combined power (-12V): 3.6 W | Cable ties included: Yes | CPU P4 connector (4-pin): 1 | Max output current (+3.3V): 20 A | Max output current (+5V): 20 A | Combined power (+5Vsb): 15 W | Max output current (-12V): 0.3 A | Number of SATA power connectors: 5 | Waste Electrical and Electronic Equipment (WEEE) compliance: Yes | Motherboard power connector: 20+4 pin ATX | CPU power connector (4+4 pin): Yes | Compliance certificates: TÜV mark | Compliance certificates: RoHS | Compliance certificates: CE | Compliance certificates: CB | Compliance certificates: UKCA | Compliance certificates: WEEE | Number of +12V rail(s): 1 | PCI Express power connectors (12-pin): 1