iUniker 27W PD USB-C Power Supply for Raspberry Pi vs Kingwin Digital Power Supply Tester with LCD Screen
Updated August 2026 — iUniker 27W PD USB-C Power Supply for Raspberry Pi wins on technology and power output, Kingwin Digital Power Supply Tester with LCD Screen wins on portability and user interface.
The iUniker power supply offers a more economical and efficient solution for Raspberry Pi users, while the Kingwin tester excels in diagnostic capabilities. Choose based on your specific needs.
Why iUniker 27W PD USB-C Power Supply for Raspberry Pi is better
Price
iUniker is cheaper at $10.99 compared to Kingwin's $16.99.
Compatibility
iUniker is specifically designed for Raspberry Pi 5.
Technology
iUniker uses advanced GaN technology for efficiency.
Why Kingwin Digital Power Supply Tester with LCD Screen is better
Functionality
Kingwin tests multiple power supply types.
Display
Kingwin has an LCD screen for real-time diagnostics.
Durability
Kingwin is made from high-quality aluminum.
Overall score
Specifications
| Spec | iUniker 27W PD USB-C Power Supply for Raspberry Pi | Kingwin Digital Power Supply Tester with LCD Screen |
|---|---|---|
| Power Type | USB-C | N/A |
| Voltage Options | 5.1V, 9V, 12V, 15V | N/A |
| Safety Features | Overvoltage protection | Short circuit protection |
| User-Friendly | Plug and play | Easy interface |
| Material | Plastic | Aluminum |
Dimension comparison
Overview of the iUniker 27W PD USB-C Power Supply for Raspberry Pi 5
The iUniker 27W PD USB-C Power Supply is specifically designed for Raspberry Pi 5 users, offering a compact and efficient power solution. Priced at $10.99, it utilizes advanced GaN technology, allowing for a smaller design while maintaining powerful performance. The power supply provides multiple output options, including 5.1V/5A, 9V/3A, 12V/2.25A, and 15V/1.8A, making it versatile for various applications.
This power supply is compatible with both 4GB and 8GB versions of the Raspberry Pi 5, and it includes built-in protections against overvoltage and short circuits. With a focus on safety and stability, this product is ETL listed, ensuring it meets specific safety standards.
Overview of the Kingwin Digital Power Supply Tester with LCD Screen
The Kingwin Digital Power Supply Tester is a diagnostic tool priced at $16.99, designed to test a wide array of power supply units, including ATX, ITX, IDE, HDD, SATA, and BTX configurations. This tester features a clear LCD display that provides real-time voltage readings, ensuring users can monitor their power supply's performance accurately.
With a user-friendly interface, the Kingwin tester is suitable for both beginners and experienced users, making it an excellent addition to any technician's toolkit. It is lightweight and portable, enhancing its utility for on-the-go diagnostics, and constructed from high-quality aluminum for durability.
Design and Build Quality
The iUniker power supply boasts a compact design made possible by GaN technology, which enhances its efficiency and reduces heat generation. At only $10.99, it provides a robust power output while being lightweight and easy to use. The power supply includes a 120mm USB-C cable and is backed by safety certifications, ensuring reliability.
On the other hand, the Kingwin tester features a more rugged design made from aluminum, which contributes to its long-term durability. Priced at $16.99, it is designed to withstand frequent use in various testing scenarios. While the iUniker focuses on providing power, the Kingwin emphasizes diagnostic efficiency, catering to different needs in the tech space.
Performance and Functionality
The iUniker power supply offers a maximum output of 27W with various voltage options, making it suitable for powering Raspberry Pi 5 devices effectively. Its compatibility with different models of Raspberry Pi ensures it meets the diverse needs of users. The built-in protections against overvoltage and short circuits enhance its reliability, making it a solid choice for powering sensitive electronics.
Conversely, the Kingwin tester is designed to provide accurate voltage readings across multiple power supply types. Its LCD screen offers real-time diagnostics, helping users quickly identify issues. This tool is essential for those who need to ensure their power supplies are functioning correctly, delivering precise measurements for various voltage rails.
User Experience
The user experience with the iUniker power supply is straightforward, as it simply plugs into the Raspberry Pi, allowing immediate use. Its compact nature means it won’t take up much space, making it an ideal choice for home or office setups. The safety features instill confidence in users, knowing their devices are protected from potential power issues.
In contrast, the Kingwin tester prioritizes ease of use with its plug-and-play functionality. Users can simply connect their power supply and receive instant feedback via the LCD display. This accessibility makes it a favorite among both beginners and professionals, ensuring that anyone can effectively diagnose power supply issues without extensive technical knowledge.
Price Comparison
The iUniker power supply is priced at $10.99, making it about 35% cheaper than the Kingwin tester, which costs $16.99. This price difference is significant, especially for users who primarily need a reliable power source for their Raspberry Pi devices. If budget is a critical factor, the iUniker power supply provides excellent value.
While the Kingwin tester’s higher price reflects its diagnostic capabilities, users must consider if they need such features. For those who solely require a power supply, the iUniker offers a more economical choice, whereas the Kingwin provides essential testing functionalities at a premium.
Versatility and Compatibility
The iUniker power supply is primarily designed for Raspberry Pi 5 models, providing tailored functionality for users of this specific device. Its multiple output voltage options ensure compatibility with various applications, making it versatile within the Pi ecosystem.
In comparison, the Kingwin tester is highly versatile, capable of testing numerous power supply types including ATX, ITX, and BTX. This broad compatibility makes it an essential tool for PC builders and technicians who need to diagnose multiple power supply units. The diversity in applications highlights the Kingwin's utility beyond just one specific device.
Which should you buy?
Deciding between the iUniker 27W PD USB-C Power Supply and the Kingwin Digital Power Supply Tester ultimately depends on your specific needs. If you are a Raspberry Pi 5 user looking for an efficient, compact power solution, the iUniker is the clear choice at $10.99. Its advanced GaN technology and safety features make it an excellent option for powering your device reliably.
On the other hand, if you require a diagnostic tool to test a variety of power supplies, the Kingwin tester, priced at $16.99, is worth the investment for its comprehensive testing capabilities. Consider your primary use case—whether it’s powering a Raspberry Pi or diagnosing various power supplies—before making your final decision.

