be quiet! System Power 11 750W PSU
£55.92 inc VAT
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About This Item
- 750 W ATX 3.1 power supply for reliable PC builds
- 12 cm fan with rifle bearing for quiet operation
- 80 PLUS Bronze certification for 90% efficiency
- Non-modular cabling with comprehensive connector set
- Multiple protection features for safe operation
- ENERGY STAR and ErP certified for sustainability
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be quiet! System Power 11 750W | Quiet, Reliable ATX PSU
The be quiet! System Power 11 750W power supply unit 20+4 pin ATX ATX Black delivers proven reliability and quiet operation for value-oriented PC builders. Designed with ATX 3.1 compatibility and a temperature-controlled fan, this PSU offers entry-level performance without compromising on essential features.
Key Specifications
| Metric | Spec. |
|---|---|
| Power Output | 750 W |
| Efficiency | 80 PLUS Bronze (90%) |
| Fan Speed | 0 – 2100 RPM |
| Noise Level | 33.4 dB |
| MTBF | 100,000 hours |
| Form Factor | ATX |
| Cooling | Active (12 cm rifle fan) |
Built for Quiet, Reliable Performance
The System Power 11 750W features a temperature-controlled 12 cm rifle bearing fan that adjusts speed based on system load, keeping noise levels to just 33.4 dB under typical use. This makes it ideal for home offices, media centres, and gaming setups where quiet operation matters. The 80 PLUS Bronze certification ensures at least 90% efficiency, reducing heat and energy waste during operation.
Complete Protection for Your Components
This PSU includes comprehensive power protection features: over current, over power, over voltage, overheating, short circuit, surge & inrush, and under voltage protection. With a 17.34 ms hold time, it maintains stable power delivery during brief interruptions. The single +12V rail design simplifies installation while providing reliable power to all components.
Flexible Connectivity for Modern Systems
The System Power 11 750W offers extensive connectivity options including a 20+4 pin ATX motherboard connector, six SATA power connectors, three PCIe 6+2 pin connectors, and both 4-pin and 4+4 pin CPU power connectors. The non-modular cabling design keeps costs down while providing all necessary connections for most modern PC builds.
Box Contents
- be quiet! System Power 11 750W power supply unit
- Power cable (UK plug should be confirmed with retailer)
- Mounting screws
- Cable ties for cable management
Check Before You Buy
- Confirm the power supply includes a UK 3-pin plug
- Verify the dimensions (150 x 86 x 140 mm) fit your PC case
- Check that your graphics card requires no more than three PCIe connectors
- Ensure your system’s total power draw stays under 750W for optimal performance
Frequently Asked Questions
Q: Is this power supply compatible with ATX 3.1 motherboards?
A: Yes, the System Power 11 750W supports ATX 3.1 and EPS 2.92 standards for modern system compatibility.
Q: Can this PSU handle a high-end gaming PC?
A: With 750W total power and 750W on the +12V rail, it’s suitable for most gaming systems with a single high-end GPU.
Q: Does it have a power switch?
A: Yes, there’s a rear on/off switch for convenient power control.
Q: What type of fan bearing does it use?
A: It uses rifle bearing technology for quiet, reliable operation.
Q: Is this power supply modular?
A: No, it features non-modular cabling to keep costs down while providing all necessary connections.
The Consultant’s Verdict & Warranty
The be quiet! System Power 11 750W power supply unit 20+4 pin ATX ATX Black represents excellent value for budget-conscious builders who prioritise quiet operation and reliability. Its ATX 3.1 compatibility, comprehensive protection features, and proven build quality make it a solid choice for home offices, media PCs, and mainstream gaming systems. Covered by the standard Manufacturer Warranty, this PSU delivers be quiet!’s signature quiet performance at an accessible price point.
| Cooling | |
|---|---|
| Fan diameter | 12 cm |
| Number of fans | 1 fan(s) |
| Fan speed | 0 - 2100 RPM |
| Cooling type | Active |
| Performance | |
| On/off switch | Yes |
| Power supply unit (PSU) form factor | ATX |
| 80 PLUS certification | 80 PLUS Bronze |
| Purpose | PC |
| ATX version | 3.1 |
| EPS version | 2.92 |
| Noise level | 33.4 dB |
| Mean time between failures (MTBF) | 100000 h |
| Bearing technology | Rifle |
| Design | |
| 80 PLUS certification | 80 PLUS Bronze |
| Product colour | Black |
| Fan diameter | 12 cm |
| On/off switch | Yes |
| Number of fans | 1 fan(s) |
| Fan speed | 0 - 2100 RPM |
| Cooling type | Active |
| Power | |
| Total power | 750 W |
| AC input voltage | 200 - 240 V |
| AC input frequency | 50 Hz |
| Input current | 4 A |
| Power factor | 0.98 |
| Combined power (+3.3V) | 120 W |
| Combined power (+12V) | 750 W |
| Combined power (+5V) | 120 W |
| Combined power (-12V) | 3.6 W |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 20 A |
| Max output current (+12V1) | 62.5 A |
| Max output current (+5V) | 20 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, Surge & inrush, Under voltage |
| Hold time | 17.34 ms |
| Efficiency | 90% |
| Number of +12V rail(s) | 1 |
| Ports & interfaces | |
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 6 |
| Peripheral (Molex) power connectors (4-pin) | 1 |
| EPS power connector (8-pin) | Yes |
| PCI Express power connectors (6+2 pin) | 3 |
| CPU P4 connector (4-pin) | 1 |
| CPU power connector (4+4 pin) | Yes |
| Cabling type | Non-Modular |
| PCI Express power connectors (12-pin) | 1 |
| Technical details | |
| Shipping (inner) case width | 31.1 cm |
| Shipping (inner) case length | 55.6 cm |
| Shipping (inner) case height | 21.8 cm |
| Products per shipping (inner) case | 6 pc(s) |
| Sustainability certificates | ENERGY STAR, ErP |
| Compliance certificates | CB, CE, RoHS, TÜV mark, UKCA, WEEE |
| Certificates | |
| Waste Electrical and Electronic Equipment (WEEE) compliance | Yes |
| Compliance certificates | CB, CE, RoHS, TÜV mark, UKCA, WEEE |
| 80 PLUS certification | 80 PLUS Bronze |
| Certification | |
| Waste Electrical and Electronic Equipment (WEEE) compliance | Yes |
| Weight & dimensions | |
| Width | 150 mm |
| Depth | 86 mm |
| Height | 140 mm |
| Weight | 2.04 kg |
| Packaging data | |
| Screws included | Yes |
| Cable ties included | Yes |
| Package depth | 268 mm |
| Package width | 195 mm |
| Package height | 97 mm |
| Package type | Box |
| Package weight | 2.4 kg |
| Packaging content | |
| Screws included | Yes |
| Cable ties included | Yes |
| Logistics data | |
| Shipping (inner) case width | 31.1 cm |
| Shipping (inner) case length | 55.6 cm |
| Shipping (inner) case height | 21.8 cm |
| Products per shipping (inner) case | 6 pc(s) |
| Shipping (inner) case gross weight | 15.6 kg |
| Other features | |
| Screws included | Yes |
| Cable ties included | Yes |
| Identifiers | |
| Distributor SKUs | PSBEQ-BP012EU, 562620 |
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