Power supply Dell N9MWK 240W Small Form Factor 240 Watts

Dell N9MWK 240W Small Form Factor power supply delivers regulated 240 watts of DC power for compatible compact Dell desktop systems. Designed for Small Form Factor (SFF) chassis, this unit replaces or repairs existing power supplies while matching the electrical characteristics and physical mounting of supported Dell systems. The supply is intended to restore proper power delivery to the motherboard and internal components in systems that require a 240 W SFF unit.

Advantages

The SFF design provides a compact footprint that fits narrow chassis while maintaining stable voltage regulation across typical desktop loads. Built to meet Dell component specifications, the unit minimizes compatibility issues with supported systems and simplifies replacement during repair or upgrade tasks. Its standardized connector layout and fixed-output rating reduce the risk of underpowering components compared with mismatched third-party units.

Suitable for

• Replacing a failed power supply in Dell Small Form Factor desktops that require a 240 W unit
• Repairing or refurbishing compact office or home Dell systems
• System maintenance where original-equivalent power specifications are required
• IT workshops performing quick swaps for diagnostics and testing

Key specifications

• Output power: 240 watts (fixed)
• Form factor: Small Form Factor (SFF) compact enclosure
• Output: regulated multi-rail DC outputs suitable for desktop components
• Cooling: internal fan for active thermal management
• Connector type: motherboard and peripheral connectors compatible with supported Dell SFF systems
• Safety and compliance: conforms to relevant safety and EMI standards for OEM Dell power supplies

How to use

Ensure the computer is powered off and disconnected from mains before attempting replacement. Open the SFF chassis following the manufacturer's service instructions, remove the existing power supply by disconnecting all internal connectors and any mounting screws, and extract the unit. Install the replacement 240 W SFF power supply in the same orientation, secure it with the original fasteners, and reconnect all motherboard and peripheral power cables to their corresponding sockets. Close the chassis, reconnect mains power, and power on the system to verify normal operation and stable voltages.

Usage recommendations

Use this power supply only in compatible Dell Small Form Factor systems that require a 240 W unit. Confirm connector compatibility and available internal space before purchase. If uncertain about installation, refer to the service manual for the specific Dell model or consult a qualified technician. Avoid operating the unit in environments with excessive dust, high humidity, or insufficient ventilation to maintain reliable thermal performance.