
Straight Power 11
Model Straight Power 11Part no. BN281EAN 4260052185773
67 specifications
- Noise8.4 dB
- Weight1.78 kg
- ColourBlack
- Total power750 W
- Motherboard power connector20+4 pin ATX
- PurposePC
Overview
- Noise
- 8.4 dB
- Weight
- 1.78 kg
- Colour
- Black
- Total power
- 750 W
- Motherboard power connector
- 20+4 pin ATX
- Purpose
- PC
- Brand
- be quiet!
- Category
- Power Supply Unit
- Model
- Straight Power 11
- Part numbers
- BN281, BN618, BN620, BN619, BN645, BN283 +4 more
- EAN / UPC
- 4260052185773, 4260052185759, 4260052185766, 4260052185780 +2 more
- Also known as
- be quiet! Straight Power 11 power supply unit 750 W 20+4 pin ATX ATX Black
Specifications
67 specifications in 10 groups
Power
| Specification | Value |
|---|---|
| Total power | 750 W |
| Peak power | 820 W |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50 - 60 Hz |
| Input current | 10 A |
| Power factor | 0.99 |
| Power Factor Correction (PFC) type | Active |
| Combined power (+3.3V) | 150 W |
| Combined power (+12V) | 750 W |
| Combined power (+5V) | 150 W |
| Combined power (-12V) | 6 W |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 25 A |
| Max output current (+12V1) | 20 A |
| Max output current (+12V2) | 20 A |
| Max output current (+12V3) | 24 A |
| Max output current (+12V4) | 24 A |
| Max output current (+5V) | 25 A |
| Max output current (-12V) | 0.5 A |
| Max output current (+5Vsb) | 3 A |
| Efficiency | 93% |
| Hold time | 19.6 ms |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage |
Ports & interfaces
| Specification | Value |
|---|---|
| Motherboard power connector | 20+4 pin ATX |
| Motherboard power cable length | 60 cm |
| Number of PATA power connectors | 4 |
| Number of SATA power connectors | 11 |
| SATA power cable length | 550 mm |
| PCI Express power connectors (6+2 pin) | 4 |
| PCI Express power cable length | 60 cm |
| CPU power connector (4+4 pin) | Yes |
| CPU power cable length | 70 cm |
| Floppy disk drive connector | Yes |
| PCI Express connector | Yes |
| Cabling type | Fully-Modular |
Performance
| Specification | Value |
|---|---|
| Purpose | PC |
| Power supply unit (PSU) form factor | ATX |
| 80 PLUS certification | 80 PLUS Gold |
| ATX version | 2.4 |
| EPS version | 2.92 |
| Silent mode | Yes |
| Bearing technology | FDB |
Design
| Specification | Value |
|---|---|
| Product colour | Black |
| Cooling type | Active |
| Fan diameter | 13.5 cm |
| Number of fans | 1 fan(s) |
| Illumination | No |
| On/off switch | Yes |
Certificates
| Specification | Value |
|---|---|
| Compliance certificates | RoHS |
| Certification | CE, FCC, TÜV, cTUVus, RCM, BSMI, CU |
Weight & dimensions
| Specification | Value |
|---|---|
| Width | 150 mm |
| Depth | 170 mm |
| Height | 86 mm |
| Weight | 1.78 kg |
Packaging data
| Specification | Value |
|---|---|
| Manual | Yes |
| Package width | 248 mm |
| Package depth | 328 mm |
| Package height | 102 mm |
| Package weight | 3.34 kg |
Technical details
| Specification | Value |
|---|---|
| Sustainability certificates | ENERGY STAR |
Logistics data
| Specification | Value |
|---|---|
| Harmonized System (HS) code | 84733020 |
Other features
| Specification | Value |
|---|---|
| Screws included | Yes |
| Cable ties included | Yes |
| Noise level (silent mode, <30%) | 8.4 dB |
| Noise level (quiet mode, 50%) | 9.01 dB |
| Noise level (full-load mode, 100%) | 21.23 dB |
| Cable management | Yes |







