SFX POWER 2
400W
SFX POWER 2
400WCompact and Silent Energy
SFX Power 2 400W is the be quiet! advanced high-power compact PSU that gives you more for your mini or media PC. It is the perfect upgrade for any PC chassis requiring an SFX form factor PSU. Its efficient design supports Energy Star 5.2 requirements, ErP 2014, and 80 PLUS® Bronze efficiency (up to 85%), while providing solid voltages and enough power to support a PCIe graphics card (6+2pin connector included).
For compact PC systems that perform beyond the ordinary, with an ideal combination of features, power, efficiency and be quiet! reliability, choose SFX Power 2 400W .
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Characteristics
STRONG DUAL 12V RAIL
For a stable PCIe graphics supportThe dual 12V rail design supports high stability as the CPU receives its power through an independent rail. A 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.
400 WATTS CONTINUOUS POWER OUTPUT
Ensures a steady and reliable operationThe SFX Power 2 can deliver 400W of continuous power. This ensures a steady and reliable operation even when your PC meets an unexpectedly heavy load.
80 PLUS® BRONZE CERTIFICATION
Efficient operationThe 80 PLUS Bronze certification with an efficiency rating of up to 89% is convincing evidence of this PSU’s power saving operation.
“Users with mini ITX PCs or overall compact systems also deserve a quiet and powerful PSU with up to 80PLUS® Gold efficiency. With this in mind, we have developed the SFX Power series. To all whom it concerns: you are welcome.”
Christian Rex, Head of BU PSU
All models at a glance:
General data
| Model | SFX Power 2 400W |
| Continuous power (W) | 400 |
| Peak power (W) | 450 |
| Form factor | SFX12V Version 3.3 |
| Form factor EPS 12V | - |
| Topology | - |
| Digitally controlled | - |
| Voltage (Vac) | 100 - 240 |
| Frequency (Hz) | 50 - 60 |
| Input current (A) | 6 / 3.5 |
| Power factor at 100% load | >0.97 |
| Modern standby | - |
| Power consumption in standby (W) | <0.18 |
| Average life time (h / 25°C) | 100,000 |
| Operating temperature up to (°C) | 50 |
Infographics
Efficiency
| 80 PLUS certification | Bronze |
| Efficiency (%) at 230V, 2% load | - |
| Efficiency (%) at 230V, 10% load | 80.6 |
| Efficiency (%) at 230V, 20% load | 86.8 |
| Efficiency (%) at 230V, 50% load | 89.3 |
| Efficiency (%) at 230V, 100% load | 87.5 |
Fan and cooling technology
| Cybenetics Noise Rating | - |
| Fan | High quality fan |
| Fan size (mm) | 80 |
| Bearing technology | Sleeve |
| Motor technology | 4-pole fan motor |
| Max. fan speed (rpm) | 2579 |
| dB(A) at 10% load | 20.5 |
| dB(A) at 20% load | 20.7 |
| dB(A) at 50% load | 20.9 |
| dB(A) at 100% load | 33.9 |
Output
| Multi-rail operation (12V rails) | 2 |
| 12V single rail operation | ✓ |
| Overclocking key | - |
| +3.3V (A) | 21 |
| +5V (A) | 22 |
| +12V1 (A) | 17 |
| +12V2 (A) | 16 |
| +12V3 (A) | - |
| +12V4 (A) | - |
| +12V5 (A) | - |
| +12V6 (A) | - |
| -12V (A) | 0.5 |
| +5Vsb (A) | 2.5 |
| Max. combined power 12V (W) | 360 |
| Max. combined power 12VHPWR (W) | 0 |
| Max. combined power 3.3V + 5V (W) | 120 |
| Hold-up time at 100% load (ms) | 24 |
| Hold-up time at 80% load (ms) | - |
| Power good signal (ms) | 100 - 500 |
Cables and connectors
| Modular cables | - |
| Sleeved cables | all |
| Flat cables | - |
| Maximum cable length (cm) | 50 |
| Cable length to motherboard (cm) | 35 |
| No. of cables | 6 |
| ATX-Motherboard (20+4-pin) | 1 |
| P4+4 (CPU) | - |
| P8 (CPU) | - |
| P4 (CPU) | 1 |
| 12VHPWR cables | 0 |
| PCI-e 6+2-pin (GPU) | 1 |
| PCI-e 6-pin (GPU) | - |
| SATA | 4 |
| PATA | 1 |
| FDD (Floppy) | 1 |
Protection
| OTP (over temperature protection) | - |
| OCP (over current protection) | ✓ |
| OPP (over power protection) | ✓ |
| SCP (short circuit protection) | ✓ |
| OVP (over Voltage protection) | ✓ |
| UVP (under Voltage protection) | ✓ |
| SIP (Surge & Inrush protection) | - |
Safety certification
| BSMI | - |
| CB | ✓ |
| CCC | - |
| CE | ✓ |
| cRUus | - |
| cTUVus | - |
| CU | - |
| FCC | - |
| RCM | - |
| TÜV | ✓ |
| UKCA | - |
Environmental directives
| Energy Star | 6.0 |
| ErP | ✓ |
| WEEE | ✓ |
| RoHS | ✓ |
| Triman | - |
Scope of delivery
| Thumb screws | - |
| Screws | ✓ |
| Cable ties | ✓ |
| Velcro cable ties | - |
| User manual languages | DE, EN, ES, FR, PL |
| OCK slot bracket with switch / OCK jumper | - |
| SFX-to-ATX adapter bracket | - |
Casing
| Dimensions without cable (L x W x H), (mm) | 100 x 125 x 63.5 |
| Weight (kg) | 0.95 |
| Color | Black |
Service
| Warranty (Years) | 2 |
| Express replacement service in first year | - |
| International hotline / free of charge | ✓ / DE, FR |
Logistics data and RRP
| Article number | BN227 |
| EAN code | 4260052183724 |
| Dimensions, package (L x W x H), (mm) | 199 x 195 x 75 |
| Gross weight, package (kg) | 1.3 |
| Pieces per packaging unit | 6 |
| Dimensions, shipping box (L x W x H), (mm) | 430 x 269 x 235 |
| Gross weight, shipping box (kg) | 9 |
| RRP (€) | 77.00 |