Dell 180W Power Supply for OptiPlex 3040 5040 7040 MT
The Dell 25KG6 is a genuine 180-watt power supply unit designed for Dell OptiPlex 3040, 5040, and 7040 Mini-Tower desktop systems. It provides reliable, stable power delivery for standard OptiPlex MT configurations and serves as a direct OEM replacement for failed or degraded PSUs in these widely deployed business desktops.
Key Features
- 180W output matched to OptiPlex MT power requirements
- Genuine OEM Dell replacement for assured compatibility
- Direct drop-in fit for OptiPlex 3040, 5040, and 7040 MT chassis
- Stable power delivery for standard desktop component configurations
Product Specifications
- Part Number: 25KG6
- Manufacturer: Dell
- OEM Status: OEM
- Wattage: 180W
- Compatible Models: Dell OptiPlex 3040 MT, 5040 MT, 7040 MT
- Form Factor: Proprietary Dell OptiPlex MT PSU
Power & Electrical Specifications
- Output Power: 180W
- Input Voltage: 100–240V AC auto-ranging
- Connector Type: Proprietary Dell OptiPlex MT (direct replacement)
- Form Factor: Dell OptiPlex Mini-Tower proprietary
- Cooling: Internal fan
Use Cases
- Replacing a failed PSU in Dell OptiPlex 3040, 5040, or 7040 MT desktops
- Preventive PSU replacement during OptiPlex fleet refurbishment
- Stocking spare PSUs for IT departments managing large OptiPlex deployments
Compatibility
- Compatible with Dell OptiPlex 3040 MT, 5040 MT, and 7040 MT only
- Not compatible with OptiPlex SFF, Micro, or other MT generations
Frequently Asked Questions
- Is this compatible with the OptiPlex 7040 SFF?
- No — the 25KG6 is designed for the Mini-Tower (MT) form factor only. The OptiPlex 7040 SFF uses a different, smaller PSU.
- Is this a genuine Dell OEM part?
- Yes — the 25KG6 is a genuine OEM Dell power supply ensuring full electrical and mechanical compatibility with supported OptiPlex MT models.
- Can I use a higher wattage PSU as an upgrade?
- The OptiPlex MT chassis is designed for the 180W PSU. Using a non-OEM or higher wattage unit may cause compatibility issues and is not recommended.
Keep your Dell OptiPlex fleet running reliably with the genuine OEM 25KG6 180W power supply. Order today and restore full power to your OptiPlex 3040, 5040, or 7040 MT desktop.


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