Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Ports & interfaces | |
| PCI Express connector | ![]() |
| PCI Express power connectors (6-pin) | 1 |
| Motherboard power connector | 24-pin ATX |
| Number of SATA power connectors | 4 |
| Peripheral (Molex) power connectors (4-pin) | 2 |
| EPS power connector (8-pin) | ![]() |
| ATX power connector (20+4 pin) | ![]() |
| CPU power connector (4+4 pin) | ![]() |
| CPU P4 connector (4-pin) | 1 |
| PCI Express power connectors (6+2 pin) | 1 |
| Cabling type | Non-Modular |
| CPU power cable length | 400 mm |
| Weight & dimensions | |
| Height | 87 mm |
| Width | 150 mm |
| Depth | 140 mm |
| Energy management | |
| Peak power | 400 W |
| Nominal power | 400 W |
| Efficiency | 85% |
| Power protection features | Over voltage, Overload, Short circuit, Under voltage |
| Power factor | 0.9 |
| Power Factor Correction (PFC) type | Active |
| Combined power (+3.3V) | 90 W |
| Combined power (+5V) | 90 W |
| Max output current (+3.3V) | 18 A |
| Max output current (+12V) | 33.36 A |
| Max output current (+5V) | 18 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 2.5 A |
| AC input frequency | 50 - 60 Hz |
| AC input voltage | 115 - 230 V |
| Total power | 400 W |
| Packaging data | |
| Manual | ![]() |
| Package type | Box |
| Certificates | |
| RoHS compliance | ![]() |
| 80 PLUS certification | 80 PLUS Bronze |
| Other features | |
| Warranty card | ![]() |
| Design | |
| Product colour | Black |
| Illumination | ![]() |
| Number of fans | 1 fan(s) |
| On/off switch | ![]() |
| Cooling type | Active |
| Fan diameter | 12 cm |
| Fan location | Top |
| Performance | |
| Purpose | PC |
| ATX version | 2.3 |
| Silent mode | ![]() |
| Power supply unit (PSU) form factor | PS/2 |
| Logistics data | |
| Harmonized System (HS) code | 84733020 |
| EAN | 4710713231252 |
| Warranty | 1 year |
The CHIEFTEC Proton BDF-400S is a 400-watt power supply unit designed for standard ATX computer builds. It features an 80 PLUS Bronze certification, which denotes an efficiency of up to 85% under typical operating loads, contributing to lower energy consumption and heat output. The unit incorporates Active Power Factor Correction (PFC) to ensure stable and efficient power delivery to system components. This power supply is built to comply with the ATX 2.3 specification, making it suitable for mainstream desktop PCs with moderate power demands.
Thermal management is handled by a 120mm fan that provides active cooling to regulate internal temperatures during use. This model has a non-modular cable design, meaning all necessary cables are permanently attached to the unit. For component safety, it is equipped with a set of protection circuits, including Over Voltage (OVP), Overload (OPP), Under Voltage (UVP), and Short Circuit Protection (SCP). Its physical dimensions adhere to the standard ATX form factor, facilitating installation in most compatible PC cases.
Key Features:- Offers 400W of total power output
- Certified 80 PLUS Bronze for energy efficiency
- Utilizes a standard ATX PS/2 form factor
- Features a non-modular design with fixed cables
- Equipped with one 24-pin ATX, one 4+4 pin CPU, one 6+2 pin PCIe, and four SATA connectors
- Cooled by a single 120mm fan
- Includes multiple power protection features
- Measures 150mm x 87mm x 140mm (W x H x D)
Estimated delivery: No delivery info
Today: 11:00 - 15:00
Estimated delivery: No delivery info
Today: Closed
Estimated delivery: No delivery info
Today: Closed
Estimated delivery: No delivery info
Today: Closed
Estimated delivery: No delivery info
Today: 10:00 - 14:00
Estimated delivery time: No delivery info
Estimated delivery time: No delivery info
Estimated delivery time: No delivery info
Estimated delivery time: No delivery info
Estimated delivery time: No delivery info
Estimated delivery time: No delivery info
- PDF document (English)


