Power supply Dell 255W Slim Form Factor 2XK8W — 255W slim internal PSU for compatible Dell systems

Dell 255W Slim Form Factor power supply is a 255-watt internal slim PSU designed for compatible Dell desktops and small form factor systems. It delivers regulated DC power to essential components including motherboard, processor, storage devices and cooling fans. The slim internal design fits systems that require a low-profile power supply and supports standard slim mounting points used in certain Dell chassis. This unit is intended for repair, maintenance or OEM replacement of existing slim Dell power supplies.

Advantages

The slim profile reduces space usage inside compact desktops while providing a stable 255W output suitable for entry to mid-level system configurations. Built to match the physical mounting and connector layout of compatible Dell slim systems, it simplifies replacement and reduces installation time. The supply offers steady voltage regulation and integrated protections to help maintain system reliability during typical office or home workloads.

Suitable for

• Small form factor Dell desktops requiring a slim internal power supply
• Repairs and OEM replacement of existing slim Dell PSUs
• System maintenance and troubleshooting in compact workstations
• Upgrading a failing or degraded slim power supply in compatible systems

Key specifications

• Output power: 255 watts continuous
• Form factor: slim internal power supply for small form factor desktops
• Output type: regulated DC rails suitable for motherboard, CPU and peripherals
• Connector style: slim-compatible internal power connectors used in compatible Dell chassis
• Cooling: internal fan with airflow tuned for compact chassis environments
• Protections: built-in overcurrent, overvoltage and short-circuit protection features
• Mounting: standard slim mounting points for compatible small form factor enclosures

How to use

Before installation, power down the system and disconnect all external power and cables. Open the chassis according to the system manufacturer’s service instructions and locate the existing slim power supply. Disconnect the internal power connectors from the motherboard, storage devices and any other components, noting connector orientation and routing. Remove the old unit from its mounting points and install the replacement slim power supply in the same position, securing it to the chassis. Reconnect internal power connectors ensuring firm seating and correct orientation. Close the chassis, reconnect external power and perform a power-on test to verify stable boot and device operation.

Recommendations

Use this slim power supply only in systems specified as compatible with this form factor. Verify connector compatibility and available wattage relative to your system’s component power requirements before installation. If unsure, consult the system service manual or a qualified technician. Always follow electrostatic discharge (ESD) precautions and safety guidelines while handling internal components.