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Item #:
16238778
Replace Power 300W 300 Watt ATX Power Supply Replacement for HP Bestec ATX-250-12E, ATX-300-12E, ATX-300-12E-D
88% of respondents would recommend this to a friend
Item #:
16238778
AUD 169
Price Details
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Imported from USA store
QTY:
Order now and get it around Monday, September 14
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Universal compatibility and reduced depth make this 300W power supply the perfect replacement for your original.
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What Stands Out
High Efficiency
Delivers 300 Watts of reliable power with a high efficiency rating, minimizing energy costs and ensuring stable performance for your HP systems.
Versatile Compatibility
Designed to seamlessly replace HP Bestec models, this power supply guarantees compatibility across various HP systems, simplifying upgrades or replacements.
Enhanced Durability
Constructed with premium materials, the power supply ensures lasting durability and optimal performance, providing peace of mind for users with demanding computing needs.
Product Details
| Compatible Devices | Personal Computer |
| Connector Type Used on Cable | Floppy, SATA |
| Output Wattage | 300 watts |
| Form Factor | ATX |
| Wattage | 400 watts |
| Cooling Method | Air |
| Number of Fans | 1 |
| Maximum Input Voltage | 230 volts |
| Minimum Input Voltage | 110 volts |
| Brand | Replace Power |
| Manufacturer | Replace Power |
| Mfr Part Number | RPSU-ATX-300-12E-D |
| Item Dimensions | 5.5 x 5.9 x 3.4 inches (14 x 15 x 8.6 cm) |
| Item Weight | 1.5 pounds (680 grams) |
| Connector Type | Floppy, SATA |
| Item dimensions L x W x H | 5.5 x 5.9 x 3.4 inches (14 x 15 x 8.6 cm) |
| Fan Count | 1 |
Who Should Buy?
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HP Desktop Users
Ideal for HP desktop users needing a reliable power supply replacement for specific Bestec models.
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Budget-Conscious Buyers
A cost-effective solution for users wanting to replace their power supply without breaking the bank.
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DIY PC Builders
Suitable for users who build or upgrade their own PCs and require a dependable power supply.
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High Performance Gamers
Not suitable for users with high-end gaming systems requiring more wattage and better performance.
Product Description
Replace Power 300W 300 Watt ATX Power Supply Replacement for HP Bestec ATX-250-12E, ATX-300-12E, ATX-300-12E-D
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What are the specifications of the Replace Power® 400W ATX Power Supply?
Answer: The Replace Power® 400W 400 Watt ATX Power Supply features a standard 20+4 pin connector, a robust output of 400 watts, and compatibility with various HP models like Bestec ATX-250-12E, ATX-300-12E, and ATX-300-12E-D. This power supply is designed to support high-performance components, ensuring stability and efficiency during demanding tasks. Users looking to replace an older or failing unit will appreciate its reliable performance in home or gaming PCs, where power stability is crucial for optimal functionality. -
Question:
Is the Replace Power® 400W ATX Power Supply compatible with gaming PCs?
Answer: Yes, the Replace Power® 400W ATX Power Supply is suitable for gaming PCs that utilize compatible HP models. While primarily designed for HP systems, many users successfully integrate it into custom builds that demand consistent power delivery. If you have mid-range to high-end components, this power supply can efficiently handle the load, especially during intense gaming sessions, thanks to its robust output and inherent efficiency. -
Question:
How to install the Replace Power® 400W ATX Power Supply?
Answer: Installing the Replace Power® 400W ATX Power Supply involves safely disconnecting your existing power supply, then connecting the new unit’s cables to your motherboard and peripherals. Ensure your computer is powered off and unplugged before beginning the installation. This power supply comes with detailed instructions, making the process straightforward for both novice and experienced users looking to upgrade or replace their power supply unit. -
Question:
What kind of components will the Replace Power® 400W support?
Answer: The Replace Power® 400W ATX Power Supply can support a variety of components, including multiple hard drives, optical drives, and a decent graphics card. It is ideal for general-purpose computing, multimedia tasks, and moderate gaming. If you are planning to run a dual-drive setup or pair the power supply with a mid-range graphics card, you can be assured that it will handle the load efficiently while maintaining stable performance. -
Question:
Where can I buy the Replace Power® 400W ATX Power Supply in Australia?
Answer: You can buy the Replace Power® 400W ATX Power Supply on Ubuy, which offers a variety of models and configurations. Ubuy provides a seamless shopping experience, along with customer support to assist you with any inquiries regarding your purchase. It's important to choose a reputable platform like Ubuy to ensure you receive genuine products and reliable service. -
Question:
What safety features does the Replace Power® 400W Power Supply have?
Answer: The Replace Power® 400W Power Supply includes essential safety features such as over-voltage, over-current, and short-circuit protection. These features are critical in preventing component failure and protecting your system from potential damage in case of electrical issues. Users can enjoy peace of mind knowing their equipment is safeguarded while maintained at optimal performance levels, making this power supply a reliable choice for daily use. -
Question:
Does the Replace Power® 400W Power Supply come with a cooling system?
Answer: Yes, the Replace Power® 400W Power Supply is equipped with an integrated cooling fan that operates to dissipate heat efficiently during usage. This fan plays a significant role in maintaining temperatures within safe limits, especially under heavy load scenarios such as gaming or intensive computing tasks. A cool power supply ensures longevity and reliable performance, allowing users to take on demanding tasks without overheating concerns. -
Question:
Can the Replace Power® 400W ATX Power Supply be used in non-HP systems?
Answer: The Replace Power® 400W ATX Power Supply can indeed function in non-HP systems, provided they meet the ATX power supply specifications and have compatible connectors. Many computer enthusiasts use this power supply in custom builds that support standard ATX configurations. It’s crucial to ensure that your system's power requirements align with the output capabilities of this power supply for optimal performance. -
Question:
What should I consider when replacing my ATX Power Supply?
Answer: When replacing your ATX Power Supply, it’s essential to consider the wattage needs of your system, the connector compatibility, and any specific features such as efficiency ratings and safety mechanisms. Additionally, researching brands and reading reviews can provide insights into reliability and performance. The Replace Power® 400W Power Supply is a good choice for users with mid-range setups, ensuring a balanced performance for various computing needs.
Replace Power Internal Power Supplies Editorial Review
The Replace Power® 400W ATX Power Supply has garnered a mixed yet largely positive reception among customers. Many users have found it to be an effective and reliable solution for reviving their non-functioning computers without needing to invest in a new machine. The power supply is noted for its wide compatibility with various components, including connectors for both SATA and Molex, which adds versatility for different motherboard setups. Some customers have highlighted that it gets the job done efficiently, and many were pleased to see their systems powered back on with all their files intact after installation. However, the product is not without its drawbacks. A recurrent theme in the feedback is the loudness of the fan. While some customers were willing to overlook this annoyance, others found it intolerable. Additionally, there were reports of specific quality control issues, such as a malfunctioning voltage switch upon unboxing and premature fan failure within the first day of use, which led to dissatisfaction and complaints about restocking fees for returns. Overall, while the Replace Power® 400W is a practical choice for those needing to replace a faulty power supply, potential buyers should be aware of the noise level and the possibility of quality inConsistencies. **
Customer Reviews & Ratings
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Pros
- Effective at reviving non-functional computers
- Compatible with various components (multiple SATA and Molex connections)
- Generally easy to install in standard ATX cases
- Many users report the power supply working reliably post-installation
Cons
- Reports of a loud fan, which may be intolerable for some users
Platform Trust & Buyer Confidence
CJ
Chris
Verified buyer
“Promt delivery. Seems like a good product.”
22 July 2026 · via Trustpilot
SM
Scott
Verified buyer
“It was the best service ever received by any company from my online shopping experience in the last 10yrs”
11 July 2026 · via Trustpilot
TD
Terri
Verified buyer
“so easy to order delivery was way earlier than i expected”
3 July 2026 · via Trustpilot
GC
Gavin
Verified buyer
“Very impressed with the speed at which I received my package from the United States to Australia. Highly recommended.”
21-Jul-26 · via Trustpilot
J
Jeannie
Verified buyer
“Very efficient service. Hassle-free. Excellent product. Have ordered several times.”
17-Jul-26 · via Trustpilot
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AUD 169
Order now and get it around Monday, September 14
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Replace various original power supplies with universal compatibility.
- Offers a compact design with reduced depth for easier fitting.
- Delivers 300 watts of power for reliable performance.
- Multiple connectors including ATX, SATA, and LP4 to suit different needs.
- Equipped with over-current and over-power protection for safety.
- High efficiency and low noise operation ensures a quiet environment.
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