1. Instrucciones de seguridad importantes
Please read these safety instructions carefully before installing or operating your FSP FlexGURU Pro 650W power supply. Failure to follow these instructions may result in electric shock, fire, or damage to the product and connected components.
- Peligro eléctrico: No abra la fuente de alimentación. Alto volumen.tagHay es en el interior, incluso cuando la unidad está desenchufada. No contiene piezas que puedan ser reparadas por el usuario.
- Ventilación: Ensure adequate airflow around the power supply. Do not block ventilation openings. Overheating can lead to performance degradation or failure.
- Humedad: Keep the power supply away from water, humidity, and liquids. Do not operate in damp o condiciones húmedas.
- Fuente de energía: Conecte la fuente de alimentación únicamente a una toma de corriente eléctrica con conexión a tierra y con el voltaje correcto.tage y frecuencia como se especifica en la etiqueta de la unidad.
- Instalación: Install the power supply in a well-ventilated computer chassis. Ensure all cables are properly connected and secured.
- Manejo: Manipule la fuente de alimentación con cuidado. Evite dejarla caer o someterla a impactos fuertes.
- Niños: Mantenga la fuente de alimentación y sus componentes fuera del alcance de los niños.
2. Producto terminadoview
The FSP FlexGURU Pro 650W is a high-efficiency Flex ATX power supply designed for compact systems requiring stable and reliable power. It complies with the latest ATX 3.1 and Flex ATX V2.1 standards, offering robust performance for current and future high-end hardware. With 80 PLUS Platinum certification, it ensures up to 92% efficiency, reducing power loss and heat generation.

Image: The FSP FlexGURU Pro 650W power supply, illustrating its compact dimensions of 5.90 inches (L) x 3.20 inches (W) x 1.59 inches (H).
3. Características principales
- New-Gen ATX 3.1 & Flex ATX V2.1 Compliance: Fully compliant with both the latest ATX 3.1 and Flex ATX V2.1 regulations, ensuring exceptional system stability and peak performance when paired with current and future high-end hardware in compact chassis.
- 80 PLUS Platinum Efficiency: Achieves the prestigious 80 PLUS Platinum standard, delivering up to 92% efficiency to significantly reduce power loss and energy costs. This high-efficiency design minimizes heat generation, allowing for ultra-quiet operation and extending the lifespan of your components.
- Optimized Low-Noise Performance: Equipped with a 40mm ball-bearing fan, smart fan control, and unique shielding design to significantly lower acoustic noise and deliver a consistent, near-silent computing experience.
- High Compatibility & Versatile Installation: Includes a universal fix bracket, allowing this 650W model to easily integrate and transform into reliable 1U IPC (Industrial PC), Networking, or Surveillance power supplies.
- Premium Japanese Electrolytic Capacitors: The FlexGURU PRO series utilizes main Japanese electrolytic capacitors to ensure exceptionally stable outputs, maximum longevity, and long-term reliability under continuous operation.
- Complete Protection for Diverse Applications: Designed and tested to the highest standards, featuring full protections (UVP, OVP, SCP, OPP, OTP, SIP, NLO). Ideal for specialized solutions like Edge Computing, NAS, HTPC, POS terminals, and Industrial PC builds.

Image: The FSP FlexGURU Pro power supply highlighting its ATX 3.1 and Flex ATX V2.1 dual compliance for modern systems.

Image: A graph illustrating the 92% typical efficiency conversion of the FlexGURU Pro 650W power supply at various load levels for both 115V and 230V inputs.

Imagen: Un primer plano view of a Japanese electrolytic capacitor, emphasizing the quality components used in the FlexGURU Pro series for stable outputs and reliability.
4. Contenido del paquete
Verifique que todos los artículos estén presentes en su paquete:
- FSP FlexGURU Pro 650W Power Supply Unit
- Cable de alimentación de CA
- Modular Cable Set (if applicable, this model is non-modular but includes various fixed cables)
- 1U Universal Fix Bracket
- Tornillos de montaje
- Manual de usuario (este documento)

Image: A diagram showing the types and quantities of all black round cables included with the power supply: 1x MB 20+4 PIN, 2x CPU 8 PIN / 4+4 PIN, 2x PCIe 6+2 PIN, 2x 2 SATA, and 1x 2 MOLEX / FLOPPY.
5. Guía de instalación
5.1 Lista de verificación previa a la instalación
- Asegúrese de que su sistema informático esté completamente apagado y desenchufado del tomacorriente de pared.
- Discharge any residual power by pressing the power button on your PC for a few seconds.
- Gather necessary tools: screwdriver, zip ties (optional for cable management).
5.2 Montaje de la fuente de alimentación
The FSP FlexGURU Pro 650W can be installed in standard Flex ATX chassis or adapted for 1U IPC applications using the included bracket.
- Carefully remove your old power supply (if applicable).
- Position the FSP FlexGURU Pro 650W into the power supply bay of your chassis.
- Secure the power supply using the provided mounting screws. For 1U IPC applications, attach the universal fix bracket to the power supply first, then mount it into the 1U chassis.

Image: The FlexGURU Pro power supply shown with the 1U bracket attached, demonstrating its adaptability for 1U IPC power supply applications.
5.3 Cables de conexión
Connect the power supply cables to the corresponding components in your system. Refer to your motherboard and component manuals for specific connection points.
- Conector de alimentación principal de 20+4 pines: Connect to the motherboard.
- CPU 8 Pin / 4+4 Pin Connector: Connect to the CPU power input on the motherboard.
- PCIe 6+2 Pin Connector: Connect to graphics cards or other PCIe devices requiring auxiliary power.
- Conectores de alimentación SATA: Conéctese a discos duros SATA, SSD y unidades ópticas.
- MOLEX / Floppy Connectors: Conéctese a periféricos más antiguos o ventiladores de caja.
Ensure all connections are firm and secure. Improper connections can cause system instability or damage.
6. Operación
After installation, ensure all components are correctly connected and the power supply is securely mounted.
- Conecte el cable de alimentación de CA a la fuente de alimentación y luego a un tomacorriente de pared con conexión a tierra.
- Coloque el interruptor de encendido en la parte posterior de la fuente de alimentación en la posición “ENCENDIDO” (I).
- Presione el botón de encendido en la carcasa de su computadora para iniciar el sistema.
The power supply's 40mm ball-bearing fan will operate automatically, controlled by smart fan technology to maintain optimal temperature and minimize noise.
7. Mantenimiento y cuidado
To ensure the longevity and optimal performance of your FSP FlexGURU Pro 650W power supply, follow these maintenance guidelines:
- Limpieza: Periodically clean the exterior of the power supply and its fan grille to prevent dust buildup. Use compressed air to gently clear dust from the fan and vents. Ensure the power supply is unplugged before cleaning.
- Ambiente: Utilice la fuente de alimentación en un entorno limpio, seco y bien ventilado. Evite temperaturas extremas.
- Sistema de organización de cables: Ensure cables are neatly routed and do not obstruct airflow within the chassis.
- Inspección: Occasionally inspect power cables for any signs of damage or fraying. Replace damaged cables immediately.
8. Solución de problemas
Si tiene problemas con su fuente de alimentación, consulte los siguientes pasos comunes de solución de problemas:
- Sin energía:
- Compruebe si el cable de alimentación de CA está conectado de forma segura tanto a la fuente de alimentación como a la toma de pared.
- Asegúrese de que el interruptor de encendido en la parte posterior de la fuente de alimentación esté en la posición “ENCENDIDO” (I).
- Verifique que el tomacorriente de pared funcione enchufando otro dispositivo.
- Check all internal power connections (20+4 pin, CPU, PCIe) to ensure they are firmly seated.
- Inestabilidad del sistema/apagados aleatorios:
- Asegúrese de que la fuente de alimentación sea adecuada.tage es suficiente para todos los componentes del sistema.
- Check for proper ventilation within the chassis to prevent overheating.
- Verify that all power cables are correctly connected and not loose.
- Si es posible, pruebe la fuente de alimentación con un conjunto diferente de componentes o en otro sistema para aislar el problema.
- Ruido fuerte del ventilador:
- Asegúrese de que la rejilla del ventilador de la fuente de alimentación esté libre de polvo y obstrucciones.
- Verify that the system is not under excessive load, causing the fan to spin faster.
- Ensure adequate case airflow to prevent the PSU from drawing in hot air.
If the problem persists after attempting these steps, please contact FSP customer support for further assistance.
9. Especificaciones técnicas
Detailed specifications for the FSP FlexGURU Pro 650W Power Supply (FSP650-50FUB):
| Característica | Especificación |
|---|---|
| Modelo | FSP650-50FUB |
| Marca | FSP |
| Factor de forma | ATX flexible |
| Salida Wattage | 650 W |
| Certificación de Eficiencia | 80 PLUS Platinum (Up to 92%) |
| Cumplimiento | ATX 3.1, Flex ATX V2.1 |
| Método de enfriamiento | Air (40mm ball-bearing fan) |
| Dimensiones del artículo (largo x ancho x alto) | 5.91 x 1.59 x 3.21 pulgadas |
| Peso del artículo | 2.18 libras |
| Diseño de fuente de alimentación | No modular |
| Vol de entradatage | 100-240 voltios (CA) |
| Frecuencia de entrada | 50-60 Hz |
| Protecciones | UVP, OVP, SCP, OPP, OTP, SIP, NLO |
| Condensadores | Japanese Electrolytic Capacitors |
| Garantía | 5 años |

Image: A table detailing the AC Input and DC Output specifications for the FlexGURU Pro 650W, including Max Output Current and Max Combined Power for +3.3V, +5V, +12V, +5Vsb, and -12V rails, with a total power of 650W.
10. Aplicaciones versátiles
The FSP FlexGURU Pro 650W power supply is designed for a wide range of applications due to its compact size, high efficiency, and robust protections:
- Industrial PC (IPC) builds
- Point of Sale (POS) terminals
- Network communication devices
- Sistemas de vigilancia
- Edge Computing solutions
- Home Theater Personal Computers (HTPC)
- Network Attached Storage (NAS) servers
- Gaming & Creator PCs (in compact chassis)

Image: Icons depicting versatile industrial applications for the FlexGURU Pro series, including Industrial PC, Point of Sale System, Network communication, Surveillance, Edge Computer, Home Theater Personal Computer, NAS Server, and Gaming & Creator PC.
11. Garantía y soporte
The FSP FlexGURU Pro 650W Power Supply (FSP650-50FUB) comes with a 5 año de garantía a partir de la fecha de compra. Esta garantía cubre defectos de materiales y mano de obra en condiciones normales de uso.
For warranty claims, technical support, or any product-related inquiries, please contact FSP customer service through their official website or the retailer where the product was purchased. Please have your proof of purchase and product model number (FSP650-50FUB) ready when contacting support.
Recursos en línea: For additional information, FAQs, and driver downloads, please visit the official FSP websitio: www.fspgroupusa.com