Apevia ITX-PFC500W Mini ITX/Flex ATX / 1U 500W vs MSI MPG A850GS PCIE5, Fully Modular Gaming 850W
Updated August 2026 — Apevia ITX-PFC500W Mini ITX/Flex ATX / 1U 500W wins on form factor and height, MSI MPG A850GS PCIE5, Fully Modular Gaming 850W wins on length and width.
The MSI MPG A850GS offers superior power capacity and efficiency, making it the better choice for high-performance systems. The Apevia ITX-PFC500W is a solid budget option for compact builds.
Why Apevia ITX-PFC500W Mini ITX/Flex ATX / 1U 500W is better
Price
Apevia is significantly cheaper at $49.99.
Size
Apevia is more compact, ideal for small builds.
Modularity
Both are fully modular, but Apevia's design is simpler.
Why MSI MPG A850GS PCIE5, Fully Modular Gaming 850W is better
Power
MSI has a higher output of 850W.
Efficiency
MSI is 80 Plus Gold certified.
Protection
MSI offers more advanced safety features.
Overall score
Specifications
| Spec | Apevia ITX-PFC500W Mini ITX/Flex ATX / 1U 500W | MSI MPG A850GS PCIE5, Fully Modular Gaming 850W |
|---|---|---|
| Power Output | 500W | 850W |
| Efficiency | N/A | 80 Plus Gold |
| Modularity | Fully Modular | Fully Modular |
| Protection | Basic | Advanced |
| Warranty | N/A | 10 Years |
Dimension comparison
Overview of the Products
When comparing the Apevia ITX-PFC500W Mini ITX/Flex ATX 500W Fully Modular Power Supply and the MSI MPG A850GS PCIE5 850W Power Supply, we see two distinct offerings tailored for different needs. The Apevia power supply is designed for smaller form factor builds, while the MSI power supply targets gamers requiring higher wattage and efficiency.
The Apevia ITX-PFC500W is priced at $49.99, making it a budget-friendly option for compact systems. In contrast, the MSI MPG A850GS comes at $110.99, reflecting its enhanced capabilities and features. This price difference of about 121% showcases the divergence in target audience and functionality.
Power Capacity Comparison
Power capacity is a critical factor in choosing a power supply, especially for gaming and high-performance systems. The Apevia ITX-PFC500W offers a maximum power output of 500W, which is suitable for lower-power setups or small form factor computers.
On the other hand, the MSI MPG A850GS provides a robust 850W, catering to demanding gaming rigs that may require more power for high-end graphics cards and multiple components. The significant difference in power output—350W—makes the MSI a better choice for users who anticipate upgrading or expanding their systems.
Efficiency Ratings
Efficiency ratings are essential for energy savings and performance. The MSI MPG A850GS boasts an 80 Plus Gold certification, indicating high efficiency in power conversion, which translates into lower energy bills and less heat generation.
In contrast, the Apevia ITX-PFC500W does not specify an efficiency certification, which could imply lower efficiency compared to its competitor. The absence of a rating could be a concern for those looking to minimize energy consumption and maximize performance. Thus, in terms of efficiency, the MSI stands out significantly.
Modular Design Features
Modularity in power supplies allows for flexible cable management, which can enhance airflow and aesthetics within a computer case. Both the Apevia ITX-PFC500W and MSI MPG A850GS feature fully modular designs, allowing users to connect only the cables they need.
The Apevia’s connectors include a standard 20+4pin Main Power and multiple PCIE and SATA connections, making it versatile for smaller builds. The MSI, however, offers advanced features like dual 12V-2x6 cables and a semi-digital design, enhancing performance and stability in high-demand scenarios. Users seeking a cleaner build will appreciate the modularity of both, though the MSI’s additional features provide an edge.
Protection Features
Safety features in power supplies help protect both the components and the user. The Apevia ITX-PFC500W includes multiple protections such as Overvoltage Protection, Overload Protection, and Short Circuit Protection, which are crucial for ensuring the longevity of components.
The MSI MPG A850GS also includes a comprehensive set of protections, such as Overvoltage Protection, Overcurrent Protection, and Over Temperature Protection, alongside its certification for industrial-level safety. While both products prioritize user safety, the MSI’s additional features and its rigorous testing under industrial conditions may provide an extra layer of security for high-performance systems.
Dimensions and Compatibility
In terms of physical dimensions, the Apevia ITX-PFC500W measures 160mm x 73.66mm x 35.5mm, making it suitable for compact and small form factor builds. This dimension is ideal for Mini ITX and Flex ATX cases, which increasingly appeal to users looking for space-saving solutions.
Conversely, the MSI MPG A850GS, designed for standard ATX cases, does not specify its dimensions but is likely larger due to its higher wattage and features. Users with limited space should consider the Apevia for its compact size, while those seeking performance and expansion potential might prefer the MSI, assuming space is not a constraint.
Pricing and Value Proposition
Pricing can significantly influence a buyer's decision. The Apevia ITX-PFC500W is priced at $49.99, making it an attractive option for budget-conscious consumers or those looking to build a simple system. In contrast, the MSI MPG A850GS is priced at $110.99, reflecting its higher capacity and efficiency features.
This difference of about $61 highlights the varying markets these products serve. For users who need a reliable power supply without breaking the bank, the Apevia is a strong contender. However, for gamers or users planning to run high-performance hardware, the MSI’s price may justify its advanced features and long-term value.
Which should you buy?
Choosing between the Apevia ITX-PFC500W Mini ITX/Flex ATX 500W Fully Modular Power Supply and the MSI MPG A850GS PCIE5 850W Power Supply ultimately hinges on your specific needs. If you are looking for a budget-friendly, compact power supply for a small form factor build, the Apevia offers excellent value at $49.99. However, if you require a high-capacity, efficient power supply that can support demanding gaming setups, the MSI is worth the investment at $110.99, especially given its 80 Plus Gold certification and enhanced safety features. Therefore, your choice should align with your system requirements and future upgrade plans.

