iUniker Active Cooler for Raspberry Pi 5 vs Thermalright Peerless Assassin 120 SE V2 CPU
Updated August 2026 — Thermalright Peerless Assassin 120 SE V2 CPU leads on weight and heat pipes.
The iUniker Active Cooler is an excellent budget option for Raspberry Pi users, while the Thermalright Peerless Assassin offers superior performance for demanding desktop tasks.
Why iUniker Active Cooler for Raspberry Pi 5 is better
Price
iUniker is significantly cheaper at $9.99
Noise Level
iUniker operates below 18 dB
Ease of Installation
iUniker has a straightforward setup process
Why Thermalright Peerless Assassin 120 SE V2 CPU is better
Cooling Performance
Thermalright maintains stable temperatures under heavy loads
Build Quality
Thermalright features a dual tower design with six heat pipes
Compatibility
Thermalright supports a wider range of CPU sockets
Overall score
Specifications
| Spec | iUniker Active Cooler for Raspberry Pi 5 | Thermalright Peerless Assassin 120 SE V2 CPU |
|---|---|---|
| Noise Level | 18 dB | 29.5 dBA |
| Max RPM | 3510 | 1850 |
| Cooling Type | Active | Dual Tower |
| Socket Support | Raspberry Pi 5 | AMD/Intel |
| Price | $9.99 | $38.99 |
Dimension comparison
Overview of the iUniker Active Cooler and Thermalright Peerless Assassin 120 SE V2
The iUniker Active Cooler for Raspberry Pi 5 is an ultra-quiet and efficient cooling solution specifically designed for the Raspberry Pi 5, while the Thermalright Peerless Assassin 120 SE V2 is a robust CPU cooler suitable for a variety of desktop systems. Priced at $9.99, the iUniker cooler is significantly cheaper than the Thermalright model, which retails for $38.99, making it about 75% less expensive. This price difference reflects the specific use case of each cooler.
Design and Build Quality
The iUniker Active Cooler is built with an aluminum heatsink and features a PWM fan designed for silent operation, running at levels below 18 dB. This design makes it ideal for environments where noise is a concern. On the other hand, the Thermalright Peerless Assassin boasts a dual tower design with six heat pipes, which enhances heat dissipation, making it suitable for high-load tasks such as gaming and multitasking. The dual 120mm PWM fans operate at up to 1850 RPM, ensuring effective cooling performance. This design gives the Thermalright cooler a more robust build quality, tailored for mainstream desktop builds.
Cooling Performance
In terms of cooling efficiency, the iUniker cooler can lower CPU temperatures to under 56°C, outperforming passive cooling solutions by a margin of 20-30°C. This is particularly beneficial for Raspberry Pi users engaging in demanding tasks. Conversely, the Thermalright Peerless Assassin's dual tower design and six heat pipes provide superior thermal performance, making it a strong contender for users who require reliable cooling in more intensive environments. The combination of these features allows the Thermalright cooler to maintain stable temperatures even during heavy loads.
Compatibility
The iUniker Active Cooler is specifically designed for the Raspberry Pi 5, ensuring a perfect fit and seamless integration with this platform. It supports PWM speed control via the Raspberry Pi OS. In contrast, the Thermalright Peerless Assassin is compatible with a broader range of systems, supporting AMD AM4 and AM5 as well as Intel LGA1851 and 1700 platforms. This extensive compatibility makes the Thermalright cooler a versatile choice for various desktop configurations, while the iUniker is limited to a niche market.
Noise Levels
The iUniker Active Cooler excels in noise performance, operating at levels below 18 dB, which is exceptionally quiet and ideal for users who prioritize a silent computing experience. This feature is particularly advantageous for projects or environments where noise could be disruptive. In comparison, the Thermalright Peerless Assassin operates at a noise level of 29.5 dBA. While still manageable, this is noticeably louder than the iUniker cooler, making it less suitable for ultra-quiet setups.
Installation Process
The installation of the iUniker Active Cooler is straightforward, equipped with pre-applied thermal tape and screws, allowing users to set it up in mere minutes. This user-friendly design caters to hobbyists and newcomers to Raspberry Pi. The Thermalright Peerless Assassin, while also designed for ease of installation, may require a bit more effort given its dual tower structure and broader compatibility, which might involve additional steps. However, both coolers are designed to minimize hassle during setup.
Price Comparison
At $9.99, the iUniker Active Cooler presents a highly economical option for users focused on cooling a Raspberry Pi 5. In contrast, the Thermalright Peerless Assassin, priced at $38.99, is more than three times the cost of the iUniker. While the price difference of approximately $29 may be justified by the Thermalright's enhanced capabilities and compatibility, the iUniker is a compelling choice for budget-conscious buyers who need effective cooling for their Raspberry Pi projects.
Which should you buy?
Choosing between the iUniker Active Cooler and the Thermalright Peerless Assassin 120 SE V2 ultimately depends on your specific needs. If you’re looking for a cost-effective, quiet cooling solution for a Raspberry Pi 5, the iUniker is an excellent choice, offering impressive cooling performance at a fraction of the price. However, if you require a robust cooler for demanding desktop tasks and a wider compatibility range, the Thermalright Peerless Assassin is the better option despite its higher price tag.

