HP Pro 3500 MT 300W Power Supply
The HP Pro 3500 Micro Tower (MT) uses a 300-watt power supply as its standard configuration . This power supply is engineered specifically for the Pro 3500 MT chassis and is also compatible with other HP desktop models, including the ProDesk 400/405 G1 MT and Pavilion P6/P7 series .
This unit features a standard ATX form factor with a 24-pin motherboard connector, making it more versatile than some proprietary HP power supplies .
HP Pro 3500 MT PSU Specifications
The key specifications for this replacement power supply are:
| Specification | Details |
|---|---|
| Product | HP Pro 3500 MT Power Supply |
| Power Output | 300W |
| Power Factor Correction | Active PFC |
| Input Voltage | 100–240V AC (auto-ranging) |
| Input Frequency | 50–60 Hz |
| Form Factor | ATX |
| Compatible Models | Pro 3500 MT, ProDesk 400/405 G1 MT, Pavilion P6/P7 |
| Application | Replacement and workstation repair |
Known Compatible Part Numbers
When purchasing a replacement, look for these compatible part and model numbers:
HP Spare Numbers
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667893-003 – Compatible HP spare number
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715185-001 – HP part number
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748824-001 – Compatible spare number
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715184-001 – Alternate compatible number
Manufacturer Model Numbers
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DPS-300AB-73 A – Manufacturer model number
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DPS-300AB-72A – Manufacturer model number
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D11-300N1A – Alternate manufacturer number
Connector Configuration
This 300W power supply features the following connectors :
| Connector Type | Quantity |
|---|---|
| 24-pin ATX Motherboard | 1 |
| 4-pin ATX 12V CPU | 1 |
| SATA Power | 4 |
| Molex (Peripheral) | 1 |
The standard ATX 24-pin connector means this power supply can be used as a replacement in compatible HP desktop systems without requiring proprietary adapter cables .
Compatibility Information
The HP Pro 3500 MT 300W power supply is compatible with the following systems :
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HP Pro 3500 Micro Tower (MT)
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HP ProDesk 400 G1 MT
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HP ProDesk 405 G1 MT
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HP Pavilion P6 Series
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HP Pavilion P7 Series
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HP Compaq Pro 3380 MT
Form Factor: This unit uses a standard ATX form factor, measuring approximately 150mm x 140mm x 86mm .
Common Signs of a Faulty Pro 3500 MT Power Supply
A defective power supply can cause several symptoms:
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The workstation does not turn on
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System shuts down unexpectedly
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Workstation becomes unstable
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Intermittent power loss
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Internal hardware does not receive power correctly
These symptoms can also be caused by other components. We recommend diagnosing the workstation before purchasing a replacement PSU.
What to Check Before Buying
1. Confirm the Workstation Model
Make sure you have an HP Pro 3500 Micro Tower (MT) or a compatible system from the list above.
2. Check the Original Wattage
The Pro 3500 MT specification is 300W. Match or exceed the original wattage if adding power-hungry components.
3. Record the Original PSU Information
Note the model, spare number, and other identification information printed on the existing unit.
4. Verify Physical Dimensions
This power supply uses a standard ATX form factor . Verify the dimensions of your existing unit.
5. Compare Connectors
Ensure the replacement provides the appropriate connections: 24-pin ATX, 4-pin CPU, and SATA connectors .
6. Consider the Complete System Configuration
If the workstation has been modified or upgraded, verify that the replacement PSU is appropriate for the installed hardware.
Why Choose a Genuine Compatible HP Power Supply?
Choosing the right power supply for your HP Pro 3500 MT is essential for:
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Restoring a non-working workstation
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Maintaining system stability
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Ensuring proper power delivery
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Supporting workstation repair and refurbishment
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Extending the useful life of your hardware
User reviews confirm that this power supply is a reliable replacement option. One customer noted it “fit perfect on my machine and it works perfect as intended” . Another user reported replacing a failed unit and getting their PC “up and running fine” .
At Compvate, we provide computer hardware and replacement components for customers maintaining and repairing desktop and workstation systems.






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