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SFX Power 3 450W, the first choice compact PSU for mini and media PCs with PCIe graphics card support.
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SFX Power 3 450W, the compact PSU from be quiet! that gives you more for your mini or media PC. It provides enough power to support powerful PCIe graphics cards while offering the ideal combination of power, quietness and reliability. That makes it the perfect choice for compact PC systems that perform beyond the ordinary.
| Model | SFX Power 3 450W |
| Continuous power (W) | 450 |
| Peak power (W) | 500 |
| Form factor ATX 12V | SFX12V V3.42 |
| 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) | 6A / 2.5A |
| PFC | active |
| Power factor at 100% load | >0.98 |
| Compliant to Intel C6/C7 | Yes |
| Power consumption in standby (W) | <0.11 |
| Average life time (h / 25°C) | 100,000 |
| Operating temperature up to (°C) | 40 |
| 12V rails (multi-rail operation) | - |
| 12V single rail operation | Yes |
| Overclocking key | - |
| +3.3V (A) | 16 |
| +5V (A) | 16 |
| +12V1 (A) | 37.5 |
| +12V2 (A) | - |
| +12V3 (A) | - |
| +12V4 (A) | - |
| +12V5 (A) | - |
| +12V6 (A) | - |
| -12V (A) | 0.3 |
| +5Vsb (A) | 2.5 |
| Max. combined power 12V (W) | 450 |
| Max. combined power 3.3V + 5V (W) | 85 |
| Hold-up time at 100% load (ms) | 21 (@80%) |
| Power good signal | 100 - 150ms |
| 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 | 2366 |
| Temperature control for case fans | - |
| dB(A) at 20% load | 13.2 |
| dB(A) at 50% load | 13.2 |
| dB(A) at 100% load | 33.8 |
| OCP (over current protection) | Yes |
| OVP (over voltage protection) | Yes |
| UVP (under voltage protection) | Yes |
| SCP (short circuit protection) | Yes |
| OTP (over temperature protection) | - |
| OPP (over power protection) | Yes |
| CE | Yes |
| CB | Yes |
| TÜV | Yes |
| FCC | - |
| cRUus | - |
| cTUVus | - |
| RCM (Australia) | - |
| BSMI | - |
| CU (Russia) | Yes |
| CCC | - |
| 80 PLUS certification | Bronze |
| Efficiency (%) at 230V, 20% load | 86.9 |
| Efficiency (%) at 230V, 50% load | 89.3 |
| Efficiency (%) at 230V, 100% load | 85.9 |
| ENERGY STAR | 8.0 |
| ErP | Yes |
| WEEE | Yes |
| RoHS | Yes |
| Nvidia® SLI (RTX 3090) ready | - |
| Cable management | Fixed |
| Sleeved cables | Sleeved cables |
| Flat cables | Yes |
| 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) | 1 |
| P4 (CPU) | - |
| PCI-E 6-pin (GPU) | - |
| PCI-E 6+2-pin (GPU) | 2 |
| PATA | 2 |
| SATA | 3 |
| FDD (Floppy) | 1 |
| External fan connectors | - |
| Dimensions without cable (L x W x D), (mm) | 100 x 125 x 64 |
| Weight (kg) | 0.89 |
| Color | Black |
| Thumb screws | - |
| Screws | Yes |
| Cable ties | Yes |
| Velcro cable ties | - |
| Box/Bag for PSU/Cables | - |
| User manual languages | DE, EN, ES, FR, PL, RU |
| OCK slot bracket with switch / OCK jumper | - |
| Efficiency Class | |
| 80PLUS Efficiency | 80 PLUS Bronze |
| Colour | |
| Primary Colour | Black |
| Power Specifications | |
| Total Power Output | 500 W |
| Power Output +12V rails | 450 W |
| Dimensions | |
| Length / Depth | 100 mm |
| Width | 125 mm |
| Height | 64 mm |
| Weight | 0.89 kg |
| Fan Specifications | |
| Fan Size | 80 mm |
| Internal Ports | |
| 6+2 Pin PCIe Power Connectors | 2 |
| SATA Power Connectors | 3 |
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