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be quiet! Straight Power 11 power supply unit 550 W 20+4 pin ATX ATX Black
SKU
BN281
£90.31
£75.26
Out of stock
Straight Power 11, 550 W, ATX 12V 2.4, EPS 12V 2.92, 100 - 240 V, 50/60 Hz, active PFC, SilentWings 3 135mm, ATX 20+4-pin, 2x PCIe 6+2-pin, 9x SATA, 3x PATA, FDD, Black
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.
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.
| SKU | BN281 |
|---|---|
| EAN | 4260052185766 |
| Manufacturer | be quiet! |
| PDF Url | https://objects.icecat.biz/objects/ |
| AVAILABILITY | N |
| Brand | Brands Select |
| Cooling | |
|---|---|
| Fan diameter | 13.5 cm |
| Number of fans | 1 fan(s) |
| Performance | |
| On/off switch | Yes |
| Power supply unit (PSU) form factor | ATX |
| Silent mode | Yes |
| Noise level (quiet mode, 50%) | 9.46 dB |
| Noise level (silent mode, <30%) | 9.02 dB |
| Noise level (full-load mode, 100%) | 17.22 dB |
| 80 PLUS certification | 80 PLUS Gold |
| Purpose | PC |
| ATX version | 2.4 |
| EPS version | 2.92 |
| Certification | CE, FCC, TÜV, cTUVus, RCM, BSMI, CU |
| Bearing technology | FDB |
| Harmonized System (HS) code | 84733020 |
| Design | |
| 80 PLUS certification | 80 PLUS Gold |
| Certification | CE, FCC, TÜV, cTUVus, RCM, BSMI, CU |
| Product colour | Black |
| Fan diameter | 13.5 cm |
| On/off switch | Yes |
| Number of fans | 1 fan(s) |
| Illumination | No |
| Power | |
| Total power | 550 W |
| Peak power | 600 W |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50 - 60 Hz |
| Input current | 8 A |
| 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 (+12V1) | 18 A |
| Max output current (+12V2) | 18 A |
| Max output current (+12V4) | 20 A |
| Max output current (+12V3) | 20 A |
| Max output current (+5V) | 24 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage |
| Hold time | 18.9 ms |
| Efficiency | 93% |
| Ports & interfaces | |
| Motherboard power cable length | 60 cm |
| SATA power cable length | 550 mm |
| PCI Express power cable length | 60 cm |
| CPU power cable length | 70 cm |
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 9 |
| Number of PATA power connectors | 3 |
| PCI Express power connectors (6+2 pin) | 2 |
| CPU power connector (4+4 pin) | Yes |
| Floppy disk drive connector | Yes |
| Cabling type | Fully-Modular |
| Weight & dimensions | |
| Width | 150 mm |
| Depth | 160 mm |
| Height | 86 mm |
| Weight | 1.51 kg |
| Packaging data | |
|---|---|
| Screws included | Yes |
| Cable ties included | Yes |
| Package depth | 328 mm |
| Package width | 248 mm |
| Package height | 102 mm |
| Package weight | 2.76 kg |
| Manual | Yes |
| Technical details | |
| Sustainability certificates | ENERGY STAR |
| Compliance certificates | RoHS |
| Certificates | |
| 80 PLUS certification | 80 PLUS Gold |
| Certification | CE, FCC, TÜV, cTUVus, RCM, BSMI, CU |
| Packaging content | |
| Screws included | Yes |
| Cable ties included | Yes |
| Manual | Yes |
| Logistics data | |
| Harmonized System (HS) code | 84733020 |
| Other features | |
| Cable management | Yes |
| Screws included | Yes |
| Cable ties included | Yes |
| Noise level (quiet mode, 50%) | 9.46 dB |
| Noise level (silent mode, <30%) | 9.02 dB |
| Noise level (full-load mode, 100%) | 17.22 dB |
| Manual | Yes |
| Harmonized System (HS) code | 84733020 |