
Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
Dell MU791 502 Watts 100-240 V AC 50-60Hz Power Supply
- 502 Watts maximum power output
- Input voltage range: 100-240 V AC
- Input frequency: 50-60 Hz
- Designed for compatibility with multiple Dell models
- Provides stable power for core system components
- Features over-voltage and short-circuit protection
- Standard ATX form factor (typical)
Was $167.39 · You save $24.81
Key specifications
See full specs ↓- Wattage
- 502 Watts
- Input Voltage
- 100-240 V AC
- Frequency
- 50-60 Hz
- Model
- MU791
- Brand
- Dell
Product details
The Dell MU791 is a 502-watt power supply unit designed for various Dell systems. It operates with a wide input voltage range and standard AC frequency, making it a versatile option for different environments.
Technical Information
| Wattage | 502 Watts |
| Input Voltage | 100-240 V AC |
| Frequency | 50-60 Hz |
Additional Specifications
| Model | MU791 |
| Brand | Dell |
Description
The Dell MU791 power supply unit offers a robust 502-watt power output, suitable for a range of Dell desktop computers and workstations. Its primary function is to convert AC power from the wall outlet into the DC voltages required by the computer's internal components, ensuring stable and reliable operation. The unit's wide input voltage range (100-240V AC) and standard frequency support (50-60Hz) make it highly adaptable for use in different geographical locations. This versatility is beneficial for businesses with global operations or for users who may relocate their systems. The 502-watt capacity is sufficient for systems with mid-range processors, graphics cards, and storage configurations. As a standard component in Dell systems, the MU791 is built with reliability and safety in mind. It typically includes integrated protection circuits to guard against electrical disturbances such as over-voltage, under-voltage, over-current, and short circuits. This ensures the protection of both the power supply itself and the sensitive components of the computer it powers.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
Buying 10+ units?
Get volume pricing and availability for MU791.




