Thermalright SI-100 White ARGB CPU Air Cooler vs S-Union New CPU+GPU Cooling Fan Replacement for Nitro 5 AN515-43
Updated August 2026 — The Thermalright SI-100 offers superior performance and features compared to the S-Union fan, making it the better choice for most users.
The Thermalright SI-100 offers superior performance and features compared to the S-Union fan, making it the better choice for most users.
Why Thermalright SI-100 White ARGB CPU Air Cooler is better
performance
Higher airflow of 72.37 CFM
features
Includes ARGB lighting and advanced cooling technology
compatibility
Supports a wider range of CPU sockets
Why S-Union New CPU+GPU Cooling Fan Replacement for Nitro 5 AN515-43 is better
price
Lower price at C$29.99
specificity
Designed specifically for Acer Nitro laptops
warranty
Offers an 18-month warranty
Overall score
Specifications
| Spec | Thermalright SI-100 White ARGB CPU Air Cooler | S-Union New CPU+GPU Cooling Fan Replacement for Nitro 5 AN515-43 |
|---|---|---|
| Airflow | 72.37 CFM | Not specified |
| Noise Level | ≤27.7 dB(A) | Not specified |
| Socket Support | Intel & AMD | Acer Nitro |
| Warranty | Not specified | 18 months |
| Material | PBT+PC | Not specified |
Dimension comparison
Overview of Thermalright SI-100 White ARGB CPU Air Cooler
The Thermalright SI-100 White ARGB CPU Air Cooler is a high-performance cooling solution priced at C$35.90. With over 20 years of experience in the computer accessories market, Thermalright has developed a reputation for producing reliable cooling products. This cooler features a compact design with dimensions of 120mm in length, 108mm in width, and 100mm in height, making it suitable for small to medium-sized cases.
This air cooler employs advanced AGHP 3.0 technology, which includes six 6mm heat pipes to effectively manage heat dissipation, ensuring optimal performance. Additionally, the cooler is equipped with a PWM fan that operates at a maximum speed of 2000 RPM and offers an airflow of 72.37 CFM, while maintaining a noise level of ≤27.7 dB(A). This combination of features makes it an excellent choice for those seeking efficient cooling without excessive noise.
Overview of S-Union New CPU+GPU Cooling Fan Replacement
The S-Union New CPU+GPU Cooling Fan Replacement is designed specifically for Acer Nitro 5 and Nitro 7 series laptops, retailing at a more affordable price of C$29.99. This cooling fan is compatible with various models including the AN515-43 and AN715-51, making it a versatile option for users of these devices.
Notably, this product comes with an 18-month warranty and has undergone rigorous testing before shipping, ensuring quality and reliability. The package includes a brand new CPU+GPU cooling fan along with a spatula for installation. Its focus on compatibility and service makes it an appealing choice for consumers looking to maintain or upgrade their laptop cooling systems.
Compatibility with Different Systems
In terms of compatibility, the Thermalright SI-100 is designed for a wide range of CPU sockets, including Intel's 1150, 1151, 1200, and AMD's AM4 and AM5. This broad compatibility allows users to install the cooler on various platforms with ease.
Conversely, the S-Union cooling fan is specifically tailored for select Acer Nitro models. While it offers perfect compatibility for these laptops, it does not extend to other brands or models. Thus, users of non-Acer devices should look elsewhere, while Acer Nitro users can rest assured they are getting a compatible replacement.
Performance and Cooling Efficiency
When it comes to performance, the Thermalright SI-100 boasts a maximum airflow of 72.37 CFM, which is particularly effective for dissipating heat from high-performance CPUs. The fan's low noise level of ≤27.7 dB(A) ensures that it operates quietly even under load, making it suitable for gaming and other demanding tasks.
On the other hand, the S-Union fan's performance metrics are not explicitly detailed in the provided data. However, its primary function as a replacement part suggests that it is engineered to meet the cooling needs of the Acer Nitro series. Users can expect decent performance, but without specific airflow or noise specifications, it is difficult to compare directly to the SI-100.
Build Quality and Durability
The Thermalright SI-100 is constructed from high-quality materials, including industrial-grade PBT+PC, which contributes to its durability and long service life of up to 20,000 hours. The incorporation of S-FDB v2.0 bearings further enhances its longevity, making it a robust choice for long-term use.
S-Union emphasizes rigorous testing for its fan, which likely speaks to its build quality and reliability. However, specific details about the materials used and overall durability are not provided. While it comes with an 18-month warranty, which is a positive sign of confidence in the product, it may not match the extensive durability claims of the Thermalright cooler.
Aesthetic Appeal and Design
Aesthetically, the Thermalright SI-100 features ARGB lighting, which allows for customization and integration into RGB setups. This is an important aspect for many users who prefer to enhance their build's visual appeal. The compact design also ensures it fits well in a variety of cases without compromising space.
In contrast, the S-Union fan does not highlight any aesthetic features, focusing instead on functionality. While practicality is important, the lack of visual appeal may be a drawback for users who desire a cohesive look in their gaming or workstations.
Price Comparison
The Thermalright SI-100 is priced at C$35.90, while the S-Union replacement fan is more budget-friendly at C$29.99. The difference of C$5.91 may seem minor, but it reflects the varying functionalities and target audiences of the products. The SI-100 offers advanced cooling technology and features that justify its higher price, while the S-Union fan caters to those looking for a straightforward replacement.
For users prioritizing performance and longevity, the investment in the Thermalright cooler may be worthwhile. However, for Acer Nitro users seeking an economical solution, the S-Union fan provides a reliable option without overspending.
Which should you buy?
Choosing between the Thermalright SI-100 White ARGB CPU Air Cooler and the S-Union New CPU+GPU Cooling Fan Replacement ultimately depends on your specific needs. If you require a high-performance cooler with a wide compatibility range, advanced features, and aesthetic appeal, the Thermalright SI-100 is the clear choice. However, if you own an Acer Nitro laptop and are simply looking for a cost-effective replacement fan, the S-Union fan serves that purpose well. Consider your system requirements, budget, and desired features to make the best decision for your cooling needs.
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