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| Ports & interfaces | |
| Floppy disk drive connector |  |
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 9 |
| CPU power connector (4+4 pin) | |
| PCI Express power connectors (6+2 pin) | 2 |
| Cabling type | Modular |
| Number of PATA power connectors | 3 |
| Motherboard power cable length | 600 mm |
| SATA power cable length | 550 mm |
| CPU power cable length | 700 mm |
| PCI Express power cable length | 600 mm |
| Weight & dimensions | |
| Weight | 1510 g |
| Height | 86 mm |
| Width | 150 mm |
| Depth | 160 mm |
| Energy management | |
| Peak power | 600 W |
| Input current | 8 A |
| Nominal power | 550 W |
| Efficiency | 93 % |
| Hold time | 18.9 ms |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage |
| Power factor | 0.99 |
| Power Factor Correction (PFC) type | Active |
| Combined power (+3.3V) | 130 W |
| Combined power (+12V) | 549.6 W |
| Combined power (+5V) | 130 W |
| Combined power (-12V) | 3.6 W |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 24 A |
| Max output current (+5V) | 24 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| AC input frequency | 50 - 60 Hz |
| AC input voltage | 100 - 240 V |
| Max output current (+12V4) | 20 A |
| Max output current (+12V3) | 20 A |
| Max output current (+12V2) | 18 A |
| Max output current (+12V1) | 18 A |
| Total power | 550 W |
| Packaging data | |
| Package weight | 2760 g |
| Package depth | 328 mm |
| Package height | 102 mm |
| Package width | 248 mm |
| Manual | |
| Certificates | |
| Certification | CE, FCC, TÜV, cTUVus, RCM, BSMI, CU |
| Energy Star certified | |
| RoHS compliance | |
| 80 PLUS certification | 80 PLUS Gold |
| Cooling | |
| Number of fans | 1 |
| Cooling type | Active |
| Fan diameter | 135 mm |
| Other features | |
| Cable management | |
| Screws included | |
| Cable ties included | |
| Design | |
| Product colour | Black |
| Illumination |  |
| Performance | |
| Purpose | PC |
| Bearing technology | FDB |
| On/off switch | |
| ATX version | 2.4 |
| EPS version | 2.92 |
| Silent mode | |
| Noise level (quiet mode, 50%) | 9.46 dB |
| Noise level (full-load mode, 100%) | 17.22 dB |
| Noise level (silent mode, <30%) | 9.02 dB |
| Power supply unit (PSU) form factor | ATX |
| EAN | 4260052185766 |
| Warranty | 1 year |
World Class Quiet and Efficiency
be quiet! Straight Power 11 550W raises the bar for systems that demand virtually inaudible operation without power quality compromises. This PSU is clearly the best choice for super silent systems.
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