Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Technical details | |
| Sustainability certificates | ENERGY STAR |
| Ports & interfaces | |
| PCI Express connector | ![]() |
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 6 |
| EPS power connector (8-pin) | ![]() |
| ATX power connector (20+4 pin) | ![]() |
| PCI Express power connectors (8-pin) | 4 |
| CPU power connector (4+4 pin) | ![]() |
| PCI Express power connectors (6+2 pin) | 4 |
| Cabling type | Fully-Modular |
| Number of PATA power connectors | 3 |
| Motherboard power cable length | 30 cm |
| CPU power cable length | 40 cm |
| PCI Express power cable length | 40 cm |
| Weight & dimensions | |
| Weight | 1.14 kg |
| Height | 64 mm |
| Width | 125 mm |
| Depth | 130 mm |
| Energy management | |
| Peak power | 550 W |
| Input current | 10 A |
| Nominal power | 500 W |
| Efficiency | 92% |
| Hold time | 16.7 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) | 105 W |
| Combined power (+12V) | 500 W |
| Combined power (+5V) | 105 W |
| Combined power (-12V) | 3.6 W |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 20 A |
| Max output current (+12V) | 41.7 A |
| Max output current (+5V) | 20 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 |
| Total power | 500 W |
| Packaging data | |
| Package weight | 2.02 kg |
| Package depth | 220 mm |
| Package height | 80 mm |
| Package width | 205 mm |
| Manual | ![]() |
| Package type | Box |
| Certificates | |
| Certification | CE, CB, TÜV, FCC, cTUVus, RCM |
| RoHS compliance | ![]() |
| 80 PLUS certification | 80 PLUS Gold |
| Compliance certificates | RoHS |
| Other features | |
| Screws included | ![]() |
| Noise level (quiet mode, 50%) | 14 dB |
| Noise level (full-load mode, 100%) | 28.5 dB |
| Noise level (silent mode, <30%) | 9.9 dB |
| Cable ties included | ![]() |
| Design | |
| Product colour | Black |
| Illumination | ![]() |
| Number of fans | 1 fan(s) |
| On/off switch | ![]() |
| Fan diameter | 12 cm |
| Performance | |
| Mean time between failures (MTBF) | 100000 h |
| Purpose | PC |
| Bearing technology | Sleeve |
| Supported motherboard form factors | Mini-ITX |
| ATX version | 2.4 |
| Silent mode | ![]() |
| Power supply unit (PSU) form factor | SFX |
| Logistics data | |
| Master (outer) case height | 240 mm |
| Master (outer) case width | 430 mm |
| Master (outer) case gross weight | 21.4 kg |
| Master (outer) case length | 430 mm |
| Products per master (outer) case | 10 pc(s) |
| Harmonized System (HS) code | 84733020 |
| EAN | 4260052187128 |
| Warranty | 3 years |
The be quiet! SFX-L Power 500W is a power supply unit engineered for compact PC builds. Its SFX-L form factor is compatible with mini-ITX and other small-footprint chassis that require efficient space utilization. The unit delivers a continuous 500 watts of power and has an 80 PLUS Gold certification, indicating up to 92% power conversion efficiency to minimize wasted heat and energy consumption. A fully modular cable system allows builders to use only the necessary cables, which facilitates cleaner routing and improved airflow within constrained enclosures.
This power supply incorporates a temperature-controlled 120mm fan for quiet operation, producing a low noise level during typical loads. Internally, it is equipped with active Power Factor Correction (PFC) and a comprehensive suite of protection circuits, including over-voltage, under-voltage, and short-circuit protection. These features ensure stable and reliable power delivery to system components. The unit's construction is rated for a mean time between failures (MTBF) of 100,000 hours, reflecting its design for long-term use.
Key Features:- Provides 500W of continuous power with a 550W peak
- Features a compact SFX-L form factor
- Achieves 80 PLUS Gold certified efficiency
- Utilizes a fully modular cabling design
- Cooled by a single 120mm fan
- Includes four 6+2 pin PCIe power connectors
- Offers six SATA power connectors
- Equipped with a complete set of safety protections
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- leaflet (English)
- manual pdf (English)
- Cables (English)
- Performance curve (English)


