Power Supply Dell 240W Slim Form 709MT – Dell 240W internal slim power supply

Dell 240W Slim Form 709MT is an internal slim power supply designed for compatible Dell small form-factor and slim desktop systems. Delivering up to 240 watts in a low-profile housing, this unit supplies regulated power to motherboard, CPU, storage drives and peripheral components. The compact design fits space-constrained chassis and is intended for use as a direct replacement or upgrade to restore reliable operation and reduce system downtime.

Advantages

The slim form factor provides a compact footprint while maintaining a 240W output, enabling installation in narrow or low-height enclosures. Built to match Dell system power requirements, the supply offers stable voltage regulation and thermal characteristics appropriate for office and business desktop configurations. Its internal mounting layout preserves internal airflow and minimizes changes to existing system cabling.

Suitable for

• Replacement of failed or aging power supplies in compatible Dell slim desktops
• Upgrading small form-factor systems to ensure stable 240W power delivery
• Business desktops used for office, point-of-sale or light workstation tasks
• Systems requiring a low-profile internal power supply to fit constrained chassis

Key specifications

• Output power: 240 watts total
• Form factor: internal slim/low-profile design suitable for small form-factor chassis
• Compatibility: designed for compatible Dell desktop systems requiring a slim internal PSU
• Mounting: internal installation with OEM-style connector and mounting points
• Cooling: integrated fan and ventilation optimized for compact enclosures
• Protections: standard overcurrent, overvoltage and short-circuit protection for system safety

How to use

Power down the system, disconnect all external cables and ground yourself to prevent electrostatic discharge. Remove the chassis cover and locate the existing power supply. Unplug internal power connectors from the motherboard, drives and any peripherals, then remove mounting screws securing the unit. Install the Dell 240W Slim Form supply in the same orientation, secure with mounting screws, and reconnect all internal power connectors following the original cable routing. Replace the chassis cover, reconnect external cables and power on the system to verify proper operation.

Recommendations

Use this power supply only in systems rated for its form factor and wattage. Verify connector compatibility and adequate airflow within the chassis. For best results, test the system after installation and monitor temperatures and voltages during initial operation. If unfamiliar with internal hardware replacement, consult service documentation or a qualified technician.