Important Safety Information & Warnings
WARNING: Do not purchase or use this power supply model in low-voltage regions such as the USA, Canada, and Japan. This model is designed for 220-240V input. Please purchase the 500W or 600W models instead if you are in a 110-120V region.
- ! Keep this product out of reach of children under 14 years of age.
- ! Hot surfaces - Do not touch immediately after operation or shutdown. Risk of burns.
- ! Risk of electric shock - Do not open. Non-professionals must not open this unit. Contact qualified technicians only for repairs.
Product Overview
The METALFISH Flex 300W Full Modular Power Supply (Model BD-350M) is a compact and efficient power solution designed for ITX Mini PCs, POS systems, NAS, and GPU Docks. It features a full modular design for clean cable management, DC-DC conversion for stable output, and a silent fan for quiet operation.
Key Features:
- Rated Output: 300W (Peak Power 450W)
- Input Voltage: 220V-240V
- Modular Type: Full Modular
- PFC Type: Active PFC
- Conversion: DC-DC
- Noise Level: Maximum 30dB (Silent Design)
- Application: Desktop, Server (ITX Mini PC, POS, NAS, GPU Dock)
- Certifications: CE, CHINA CCC CERTIFICATION, Achieving 80 PLUS White Label Conversion Efficiency
Specifications
General Specifications:
| Attribute | Value |
|---|---|
| Brand Name | METALFISH |
| Model Number | BD-350M |
| Rated Power | 300W |
| Input Voltage | 220V-240V |
| Modular | Full Modular |
| PFC Type | Active |
| Fans | 1 |
| Interface Type | 24Pin |
| CPU Power Connector | 8 pin x2 |
| Graphics Card 12V Pin Number | 8 pin |
| Number of SATA Ports | 2 |
| D-type Bus Number | 2 |
| 80 PLUS Certification | Other Certification (White Label Conversion Efficiency) |
| Certification | CE |
| Origin | Mainland China |
Output Specifications:
| DC Output | +3.3V | +5V | +12V | -12V | +5Vsb |
|---|---|---|---|---|---|
| MAX Output Current (Max. Current) | 10A | 12A | 25A | 0.3A | 2.5A |
| MAX Output Wattage (Max. Power) | 85W | 85W | 300W | 3.6W | 12.5W |
Physical Dimensions & Package:
- Dimensions (L x W x H): 162mm x 81.5mm x 40.5mm
- Package Length: 29 cm
- Package Width: 20 cm
- Package Height: 9 cm
- Package Weight: 1.076 kg
Setup Instructions
This product is designed for use with devices requiring power supply, such as computers, NAS systems, and graphics card docks (not recommended for mining rigs).
- Unboxing Inspection: Please inspect the contents for completeness after unboxing.
- Power Disconnection: Be sure to insert all wires with the system power disconnected.
- Cable Connection:
- Ensure that the CPU cable and PCIe cable are properly connected.
- Do not use the CPU cable for GPU power.
- Do not use the PCIe cable for CPU power.
- Professional Installation: If this is your first time assembling a computer, we recommend having it installed by a professional.
Modular Cable Connections:
The power supply features a full modular design, allowing you to connect only the necessary cables for your system. This helps improve airflow and cable management.
Cable Specifications:
The included cables are embossed flat wires, which are attractive and easy to organize, providing greater flexibility in small spaces. The terminals are made of phosphor bronze, resistant to burning and high temperatures.
| Cable Type | Quantity | Length |
|---|---|---|
| Motherboard Power (24Pin) | 1 | 350mm |
| PCIe Power (6+2Pin) | 1 | 350mm |
| CPU Power (4+4Pin) | 1 | 450mm |
| SATA/MOLEX | 1 | 350+120+120mm |
*There may be errors in manual measurement, please refer to the actual product.
Operating Instructions
Once all connections are securely made and verified, you can power on your system. The METALFISH BD-350M PSU is designed for stable and efficient operation.
Silent Operation:
The PSU features a high-quality 4020 PWM fan (BS40SE-12M) with a speed range of 1400-6000 RPM, ensuring a low noise level of 17.8-30 dBA. This silent design contributes to a quieter computing environment.
Advanced Power Management:
The PSU incorporates a DC-DC Independent Control Chip (ndp-semi NDP23803Q8 DC controller) and a Precision Power Management Overcurrent Protection Chip (UTC8313) for precise circuit output and reduced standby power consumption, improving overall efficiency.
Multiple Protection Features:
For stable operation and hardware safety, the power supply includes multiple protection mechanisms:
- OVP: Overvoltage Protection
- UVP: Undervoltage Protection
- OPP: Overload Protection
- OCP: Overcurrent Protection
- OTP: Overtemperature Protection
Maintenance
- Keep Vents Clear: Ensure that the power supply's fan intake and exhaust vents are free from dust and obstructions to maintain optimal cooling and prevent overheating.
- Regular Cleaning: Periodically clean the exterior of the power supply with a soft, dry cloth. Avoid using liquid cleaners directly on the unit.
- Environmental Conditions: Operate the PSU in a well-ventilated area with stable temperature and humidity to prolong its lifespan.
Troubleshooting
- No Power: Double-check all cable connections, especially the 24-pin motherboard connector and CPU power. Ensure the power switch on the PSU is in the 'ON' position and the wall outlet is functional.
- System Instability/Crashes: Ensure all power cables are correctly seated. If the issue persists, it might indicate a faulty component or insufficient power for your system.
- If the power supply fails to operate: Please provide clear photos showing all cables properly connected or images of professional instrumentation test results. We strongly recommend having it tested by a qualified technician.
- Unusual Noise: While designed for silent operation, excessive or unusual noise might indicate a fan issue. Ensure no cables are obstructing the fan.
User Tips
- Cable Management: Take advantage of the full modular design and flat cables to keep your PC build tidy and improve airflow. Only connect the cables you need.
- Compatibility Check: Always verify the physical dimensions of the PSU (162mm x 81.5mm x 40.5mm) against your case's specifications to ensure proper fit, especially for ITX and small form factor builds.
- Voltage Awareness: As noted in the safety section, this PSU is for 220-240V regions. Confirm your region's voltage before purchase and use.
- Cables Included: The power supply comes with all necessary modular cables for standard PC components, including motherboard, CPU, PCIe, SATA, and MOLEX connectors.
Warranty & Support
This METALFISH Flex 300W Full Modular Power Supply comes with a 1-year manufacturer's warranty from the date of purchase.
For technical support, warranty claims, or further assistance, please refer to the official METALFISH support channels or contact your retailer.
A detailed user manual in PDF format may be available for download. Please check the product page or manufacturer's website for the latest version. A PDF version of the user manual can be found here.
