Power supply Dell D13 SFFM 300W for small form factor systems, compatible with Dell SFF models

The Dell D13 SFFM 300W power supply is designed for small form factor Dell systems, providing up to 300 watts of DC power for compact desktop configurations. This replacement or spare unit restores OEM-compatible power delivery to compatible SFF Dell models and is intended for system maintenance, repair and upgrades where a compact, direct-fit power source is required.

Advantages

This 300W power supply fits small form factor chassis and delivers stable power suitable for typical SFF components. Its compact design preserves internal space and airflow in constrained enclosures while offering compatibility with power connectors and mounting points used in corresponding Dell SFF models. Using an OEM-compatible unit reduces the risk of incompatibility compared with generic supplies and simplifies installation and serviceability.

Suitable for

• Repairing or replacing a failed power supply in compatible Dell small form factor desktops
• Keeping a spare unit for IT maintenance and rapid on-site exchange
• Upgrading a system when a higher-quality OEM-compatible replacement is required

Key specifications

• Output power: up to 300 watts DC
• Form factor: small form factor (SFF) compact power supply
• Cooling: built-in fan designed for constrained chassis airflow
• Connector compatibility: standard internal connectors used by compatible Dell SFF systems
• Purpose: designed for replacement, spare or service use in SFF desktops

How to use

Shut down the computer and disconnect all external power and cables before replacing the power supply. Open the SFF chassis according to the system service manual, remove the defective unit by unscrewing or unlatching the mounting points and disconnecting internal power connectors. Install the replacement unit by aligning it with the mounting points, securing it in place, and reconnecting all internal power connectors to the motherboard and storage devices. Close the chassis, reconnect external cables and power on the system to verify correct operation. Follow anti-static precautions during handling.

Usage recommendations

Use this power supply in systems for which it is specified as compatible. Verify connector layout and chassis mounting before installation, and ensure the combined power draw of installed components does not exceed the supply’s rated output. For continued reliability, operate the system in a well-ventilated environment and replace the unit if signs of overheating, noise increase, or electrical instability appear.