compact
Article number: BN320
SFX POWER 3
300WCOMPACT AND SILENT ENERGY
SFX Power 3 300W, the first choice compact PSU for mini and media PCs with 80 PLUS® Bronze and PCIe graphics card support. SFX Power 3 300W offers the ideal combination of power, quietness and reliability.
- Strong 12V rail with 300W of continuous power
- 6+2 pin PCIe connector for GPU support
- High-quality temperature-controlled 80mm fan for quiet operation of max. 29.4dB(A)
- Sleeved or flat black cables up to 60cm
- 80 PLUS® Bronze efficiency (up to 89.2%)
- Meets the latest safety and efficiency requirements
- Three-year manufacturer’s warranty
- Product conception, design and quality control in Germany
Characteristics
STRONG 12V RAIL
For a stable PCIe graphics supportA PCIe connector provides power for a demanding graphics card. Safety protections defend against overcurrents, over- and undervoltages, short circuits and overloads, thus keeping your valuable components safe.
300 WATTS CONTINUOUS POWER OUTPUT
Ensures a steady and reliable operationThe SFX Power 3 can deliver 300W of continuous power. This ensures a steady and reliable operation even when your PC meets an unexpectedly heavy load.
QUIET AND EFFICIENT OPERATION
For mini or media PCsThe high-quality temperature-controlled 80mm fan allows quiet operations of max. 29.4dB(A). The 80 PLUS Bronze certification with an efficiency rating of up to 89.2% is convincing evidence of this PSU’s power saving operation.
All models at a glance:
General data
| Model | SFX Power 3 300W |
| Continuous power (W) | 300 |
| Peak power (W) | 350 |
| Form factor | SFX12V Version 3.42 |
| Form factor EPS 12V | Version 2.92 |
| Modular Cable management | - |
| Topology | - |
| Wire-free design (DC-side) | - |
| Voltage (Vac) | 100 - 240 |
| Frequency (Hz) | 50 - 60 |
| Input current (A) | 5 / 2 |
| PFC | active |
| Power factor at 100% load | >0.98 |
| Compliant to Intel C6/C7 | ✓ |
| Power consumption in standby (W) | <0.11 |
| Average life time (h / 25°C) | 100,000 |
| Operating temperature up to (°C) | 40 |
Infographics
Output
| 12V rails (multi-rail operation) | - |
| 12V single rail operation | ✓ |
| Overclocking key | - |
| +3.3V (A) | 16 |
| +5V (A) | 16 |
| +12V1 (A) | 25 |
| +12V2 (A) | - |
| +12V3 (A) | - |
| +12V4 (A) | - |
| +12V5 (A) | - |
| +12V6 (A) | - |
| -12V (A) | 0.3 |
| +5Vsb (A) | 2.5 |
| Max. combined power 12V (W) | 300 |
| Max. combined power 3.3V + 5V (W) | 85 |
| Hold-up time at 100% load (ms) | 26.8 (@80%) |
| Power good signal | 100 - 150ms |
Fan / Cooling technology
| Fan type | High quality fan |
| +SilentWings | - |
| Motor technology | 4-pole fan motor |
| Bearing technology | Rifle |
| Fan size (mm) | 80 |
| Max. fan speed (rpm), temperature-dependent | 1979 |
| Temperature control for case fans | - |
| dB(A) at 20% load | 14.4 |
| dB(A) at 50% load | 14.4 |
| dB(A) at 100% load | 29.4 |
Protection
| OCP (over current protection) | ✓ |
| OVP (over Voltage protection) | ✓ |
| UVP (under Voltage protection) | ✓ |
| SCP (short circuit protection) | ✓ |
| OTP (over temperature protection) | - |
| OPP (over power protection) | ✓ |
| SIP (Surge & Inrush Protection) | ✓ |
Safety certification
| CE | ✓ |
| CB | ✓ |
| TÜV | ✓ |
| FCC | - |
| cRUus | - |
| cTUVus | - |
| RCM (Australia) | - |
| BSMI | - |
| CU (Russia) | ✓ |
| CCC | - |
Eco / Efficiency
| 80 PLUS certification | Bronze |
| Efficiency (%) at 230V, 20% load | 84.4 |
| Efficiency (%) at 230V, 50% load | 89.2 |
| Efficiency (%) at 230V, 100% load | 88.1 |
Environmental directives
| Energy Star | 8.0 |
| ErP | ✓ |
| WEEE | ✓ |
| RoHs | ✓ |
Cables / Connectors
| Nvidia® SLI (RTX 3090) ready | - |
| Cable management | Fixed |
| Sleeved cables | Sleeved cables |
| Flat cables | P8 / PCIe / drives |
| Cable length to mainboard (cm) | 35 |
| Cable length to first connector (cm) | 30 |
| Maximum cable length (cm) | 60 |
| All-in-one cable (SATA/PATA/FDD) | - |
| No. of cables | 5 |
| ATX-Motherboard (20+4-pin) | 1 |
| P8 (CPU) | - |
| P4+4 (CPU) | - |
| P4 (CPU) | 1 |
| PCI-e 6-pin (GPU) | - |
| PCI-e 6+2-pin (GPU) | 1 |
| PATA | 2 |
| SATA | 3 |
| FDD (Floppy) | 1 |
| External fan connectors | - |
Casing
| Dimensions without cable (L x W x D), (mm) | 100 x 125 x 64 |
| Weight (kg) | 0.84 |
| Color | Black |
Accessories
| Thumb screws | - |
| Screws | ✓ |
| Cable ties | ✓ |
| Velcro cable ties | - |
| Box/Bag for PSU/Cables | - |
| User manual languages | DE, EN, ES, FR, PL, RU |
| OCK slot bracket with switch / OCK jumper | - |
| SFX-to-ATX adapter bracket | - |
Service
| Warranty (Years) | 3 |
| Express replacement service in first year | - |
| International hotline / free of charge | ✓ / DE, FR |
Logistics data, RRP
| Article number | BN320 |
| EAN code | 4260052188262 |
| Dimensions, package (L x W x H), (mm) | 75 x 197 x 207 |
| Gross weight, package (kg) | 1.19 |
| Pieces per packaging unit | 6 |
| Dimensions, shipping box (L x W x H), (mm) | 457 x 265 x 233 |
| Gross weight, shipping box (kg) | 7.91 |
| RRP (€) | 57.90 |