POINWER H240AS-01 H240AS-00 L240AS-00 2TXYM 3WN11 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 power output.
The POINWER H240AS-01 is a budget-friendly option for small systems, while the Rosewill VMG 850W offers superior power and features for high-performance builds.
Why POINWER H240AS-01 H240AS-00 L240AS-00 2TXYM 3WN11 is better
Price
POINWER is significantly cheaper at $30.36.
Installation
Easier installation process with three simple steps.
Size
Compact design suitable for small systems.
Why Rosewill VMG 850W 80+ Gold, ATX 3.0 & 3.1 is better
Power Output
Rosewill provides 850W, suitable for high-performance systems.
Modular Design
Full modular design reduces cable clutter.
Safety Features
Comprehensive six-protection suite ensures system security.
Overall score
Specifications
| Spec | POINWER H240AS-01 H240AS-00 L240AS-00 2TXYM 3WN11 | Rosewill VMG 850W 80+ Gold, ATX 3.0 & 3.1 |
|---|---|---|
| Compatibility | Dell OptiPlex SFF | ATX 3.0 & 3.1 |
| Modularity | Non-Modular | Full Modular |
| Cooling Fan | Standard | 120mm FDB |
| Warranty | N/A | 5 Years |
| Safety Features | Basic Testing | Six-Protection Suite |
Dimension comparison
Price Comparison
When it comes to pricing, the POINWER H240AS-01 is significantly more affordable than the Rosewill VMG 850W. The POINWER H240AS-01 is priced at $30.36, whereas the Rosewill VMG 850W retails for $74.97. This means the POINWER is approximately 59% cheaper than the Rosewill. For users on a budget or those looking to replace a power supply in a smaller system, the lower price point of the POINWER makes it a compelling option.
Compatibility
The POINWER H240AS-01 offers specific compatibility with Dell OptiPlex models, including the 390, 790, 960, and 990, specifically for Small Form Factor (SFF) systems. In contrast, the Rosewill VMG 850W is designed to be more versatile, being compatible with Intel ATX 3.0 and 3.1 systems, which broadens its usability beyond just one brand or model line. Users with newer systems may find the Rosewill's compatibility with next-gen GPUs and PCIe 5.1 support particularly advantageous.
Power Output
The power output of the two products highlights a significant difference. The POINWER H240AS-01 provides 240W of power, which is adequate for lower-end systems or those with minimal power requirements. On the other hand, the Rosewill VMG 850W boasts an impressive 850W output, making it suitable for high-performance builds, including systems with powerful graphics cards that require more power. This means that the Rosewill can support more demanding applications, such as gaming or content creation, far better than the POINWER.
Modular Design
In terms of design, the Rosewill VMG 850W features a full modular design, allowing users to connect only the cables they need for their specific build. This can help reduce cable clutter and improve airflow within a case. The POINWER H240AS-01 does not mention any modular features, suggesting a more traditional setup where all cables are fixed. For users aiming for an organized and efficient system, the modularity of the Rosewill offers a clear advantage.
Cooling Features
Cooling efficiency is another area where the two power supplies differ. The Rosewill VMG 850W is equipped with a 120mm FDB (Fluid Dynamic Bearing) silent fan, designed to enhance cooling performance while minimizing noise. The POINWER H240AS-01 does not specify any particular cooling technology, which may suggest a more basic approach to thermal management. For users concerned about system temperatures and noise levels, the cooling capabilities of the Rosewill are likely to be more effective.
Safety Features
Safety is paramount when selecting a power supply, and the Rosewill VMG 850W excels in this category with its comprehensive six-protection suite, which includes Over Current Protection, Over Voltage Protection, and Short Circuit Protection, among others. These features ensure complete system security during operation. The POINWER H240AS-01 mentions stringent testing but lacks specific safety certifications or features, which could be a concern for users prioritizing reliability and safety in their builds.
Installation Process
The installation process for both power supplies is designed to be user-friendly, but they take different approaches. The POINWER H240AS-01 emphasizes an effortless installation with just three simple steps, making it suitable for users who may not be very tech-savvy. Meanwhile, the Rosewill VMG 850W, while also designed for easy integration, may require more careful cable management due to its modular design. For those who value straightforward installation, the POINWER could be the easier option.
Which should you buy?
Deciding between the POINWER H240AS-01 and the Rosewill VMG 850W largely depends on your specific needs. If you're looking for a budget-friendly option for a small form factor Dell OptiPlex system, the POINWER at $30.36 is an excellent choice. However, if you're building a high-performance PC and require a robust power supply that supports modern components and offers advanced safety features, the Rosewill at $74.97 is worth the investment. Ultimately, for general use and everyday computing, the POINWER suffices, while the Rosewill is better suited for demanding tasks.

