NATNO 90W 65W Power Supply Compatible with HP ProDesk vs Rosewill VMG 850W 80+ Gold, ATX 3.0 & 3.1
Updated August 2026 — Rosewill VMG 850W 80+ Gold, ATX 3.0 & 3.1 leads on modularity and cooling.
For low-power HP mini PCs, the NATNO power supply is a budget-friendly choice, while the Rosewill offers superior performance for high-demand systems.
Why NATNO 90W 65W Power Supply Compatible with HP ProDesk is better
Price
Lower cost at $16.99
Compatibility
Specifically designed for HP models
Size
Compact for low-power systems
Why Rosewill VMG 850W 80+ Gold, ATX 3.0 & 3.1 is better
Power Output
850W output for high-performance builds
Efficiency
80 PLUS Gold certified for energy savings
Cooling
Equipped with a silent 120mm fan
Overall score
Specifications
| Spec | NATNO 90W 65W Power Supply Compatible with HP ProDesk | Rosewill VMG 850W 80+ Gold, ATX 3.0 & 3.1 |
|---|---|---|
| Power Type | 90W | 850W |
| Modularity | Non-Modular | Full Modular |
| Certification | None | 80 PLUS Gold |
| Cooling Fan | Not Specified | 120mm FDB |
| Compatibility | HP Mini PCs | ATX 3.0 & 3.1 |
Dimension comparison
Overview of the Products
The 90W 65W Power Supply is priced at $16.99, while the Rosewill VMG 850W 80+ Gold is significantly higher at $74.97. This stark price difference reflects the intended use and specifications of each product. The NATNO power supply is designed specifically for HP ProDesk and EliteDesk mini PCs, making it a niche component, while the Rosewill power supply aims for a broader market, featuring advanced specifications suitable for high-performance builds.
Design and Build Quality
The NATNO power supply is built to serve specific HP models, ensuring compatibility with various mini desktop configurations. Conversely, the Rosewill VMG 850W emphasizes a compact design, with its chassis measuring 140×150×86mm, which is 35% smaller than traditional models. This compactness allows for flexible integration into small-form-factor builds, appealing to those who prioritize space efficiency in their setups. The focus on modularity and a low-noise operation in the Rosewill unit further underscores its robustness in design.
Compatibility
The 90W 65W Power Supply is explicitly compatible with several HP models, including the ProDesk and EliteDesk series, as well as HP Omni all-in-ones. This targeted compatibility makes it essential for users of these specific systems. In contrast, the Rosewill VMG 850W supports Intel ATX 3.0 & 3.1, along with PCIe 5.1, ensuring it can accommodate the latest graphics cards and motherboards. Its versatility allows it to fit a wide range of custom builds, making it a better choice for enthusiasts looking to upgrade or build from scratch.
Power Output
The 90W 65W Power Supply delivers a maximum output of 90W, along with compatibility for 65W, catering specifically to low-power mini PCs. This output is sufficient for basic tasks but may fall short for high-demand applications. In comparison, the Rosewill VMG 850W boasts an impressive 850W output, making it suitable for high-performance gaming rigs and workstations. It can handle up to 235% power excursion and 300% GPU power excursion, indicating its capability to support demanding components.
Efficiency Ratings
Efficiency is a crucial aspect when evaluating power supplies. The Rosewill VMG 850W is 80 PLUS Gold certified, which guarantees a higher efficiency level, translating to lower energy costs over time. While the NATNO power supply does not specify an efficiency rating, its lower wattage suggests it may not be as efficient in handling power loads as the Rosewill unit. Users aiming for energy savings and performance optimization will likely prefer the Rosewill's efficiency certification.
Cooling Features
Cooling is vital in maintaining optimal performance and longevity in power supplies. The Rosewill VMG 850W is equipped with a 120mm FDB silent fan and optimized thermal control, designed to enhance cooling performance. This feature significantly reduces noise during operation, making it ideal for quiet environments. The NATNO power supply does not highlight any specific cooling mechanisms, which may be a consideration for users looking for quiet operation in their setups.
Warranty and Support
The Rosewill VMG 850W comes with a 5-year warranty, showcasing the manufacturer's confidence in their product's durability and reliability. This extended warranty is a considerable advantage for users investing in a high-performance power supply. In contrast, the NATNO power supply does not specify a warranty period, which may raise concerns about long-term reliability for some consumers. A solid warranty can influence purchasing decisions, especially for higher-end components.
Which should you buy?
Choosing between the 90W 65W Power Supply and the Rosewill VMG 850W boils down to your specific needs. If you own an HP ProDesk or EliteDesk mini PC and require a straightforward, budget-friendly solution for low-power tasks, the NATNO power supply at $16.99 is a suitable option. However, for users looking to build a high-performance system that requires substantial power and efficiency, the Rosewill VMG 850W offers superior features and capabilities, albeit at a higher price of $74.97. Ultimately, your choice should align with your system requirements and performance expectations.

