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27W PD USB C GaN Power Supply for Raspberry Pi 5 Adapter 5.1V 5A vs Raspberry Pi 15W USB-C Power Supply US - Black

Updated August 2026The 27W PD USB C GaN Power Supply is the better choice for Raspberry Pi 5 users due to its higher power output and safety features.

The 27W PD USB C GaN Power Supply is the better choice for Raspberry Pi 5 users due to its higher power output and safety features.

Why 27W PD USB C GaN Power Supply for Raspberry Pi 5 Adapter 5.1V 5A is better

higher power

27W vs 15W output

better compatibility

designed for Raspberry Pi 5

safety features

includes over-current and over-voltage protection

Why Raspberry Pi 15W USB-C Power Supply US - Black is better

lower price

C$20.35 vs C$21.39

longer cable

1.5-meter cable included

brand trust

official Raspberry Pi product

Overall score

27W PD USB C GaN Power Supply for Raspberry Pi 5 Adapter 5.1V 5A
85
Raspberry Pi 15W USB-C Power Supply US - Black
75

Specifications

Spec27W PD USB C GaN Power Supply for Raspberry Pi 5 Adapter 5.1V 5ARaspberry Pi 15W USB-C Power Supply US - Black
BrandVemicoRaspberry Pi
Max Output27W15W
Safety FeaturesYesNo
CompatibilityRaspberry Pi 5Raspberry Pi 4
Price (CAD)21.3920.35

Dimension comparison

27W PD USB C GaN Power Supply for Raspberry Pi 5 Adapter 5.1V 5ARaspberry Pi 15W USB-C Power Supply US - Black

Overview of the Products

In this comparison, we will examine the 27W PD USB C GaN Power Supply for Raspberry Pi 5 and the Raspberry Pi 15W USB-C Power Supply. The former is priced at C$21.39, while the latter costs C$20.35. Both products are designed to provide power to Raspberry Pi devices, but they differ in power output and additional features.

The 27W PD USB C GaN Power Supply is built to support the latest Raspberry Pi 5, offering a maximum output of 5.1V and 5A. In contrast, the Raspberry Pi 15W USB-C Power Supply delivers 5.1V and 3A. These differences in power output can affect the performance and efficiency of your Raspberry Pi projects.

Compatibility

The compatibility of a power supply with specific Raspberry Pi models is crucial for optimal performance. The 27W PD USB C GaN Power Supply is explicitly designed for full compatibility with the Raspberry Pi 5. This ensures that users can leverage the full potential of their Raspberry Pi 5 without any compatibility issues.

On the other hand, the Raspberry Pi 15W USB-C Power Supply is intended for use with the Raspberry Pi 4 Model B. While it may work with other models, it is not specifically optimised for the Raspberry Pi 5. This distinction makes the 27W GaN Power Supply a better choice if you're looking to power the latest model.

Power Output

When it comes to power output, the 27W PD USB C GaN Power Supply significantly outperforms the Raspberry Pi 15W USB-C Power Supply. The 27W unit provides a robust output of 5.1V and 5A, allowing for a total power delivery of 27 watts. In contrast, the 15W power supply delivers only 5.1V and 3A, which translates to a maximum of 15 watts.

This higher power output from the GaN Power Supply means it can support more demanding applications and accessories connected to the Raspberry Pi 5, making it a more versatile option for advanced projects.

Safety Features

Safety is paramount when working with electronic devices, and both power supplies come with built-in safety features. The 27W PD USB C GaN Power Supply includes over-current protection, over-voltage protection, and short-circuit protection. These features help ensure the safety of both the power supply and the connected Raspberry Pi device.

In comparison, the Raspberry Pi 15W USB-C Power Supply does not explicitly mention any safety features in the provided data. While it is an official product from Raspberry Pi, the lack of detailed safety specifications may lead some users to favour the more robust safety features of the 27W GaN Power Supply.

Portability

Portability can be a deciding factor for users who require a power supply that is easy to transport. The 27W PD USB C GaN Power Supply boasts a compact design, with dimensions of 60 * 40 * 26.5mm, making it highly portable. This is especially beneficial for users who need to carry their Raspberry Pi projects on the go.

In contrast, the Raspberry Pi 15W USB-C Power Supply does not specify its dimensions, but its weight is noted to be 3.84 ounces. While it is likely still portable, the lack of specific size information makes it difficult to assess how it compares directly to the GaN Power Supply in terms of portability.

Cable Length

The length of the power supply cable can impact user experience significantly, especially in setups where space is limited. The Raspberry Pi 15W USB-C Power Supply includes a 1.5-meter long cable, which provides flexibility in positioning the Raspberry Pi during use.

Unfortunately, the 27W PD USB C GaN Power Supply does not specify the length of its cable, which may limit its practicality in certain setups. A longer cable can enable easier access to power outlets while accommodating various project configurations, making the Raspberry Pi 15W supply more user-friendly in this regard.

Brand Reputation

Brand reputation can influence purchasing decisions. The 27W PD USB C GaN Power Supply is produced by Vemico, a brand known for its focus on innovative power solutions. Conversely, the Raspberry Pi 15W USB-C Power Supply is an official product from the Raspberry Pi Foundation, a well-respected entity in the maker and tech communities.

While both brands offer reputable products, the official backing of the Raspberry Pi Foundation may provide additional assurance for some users regarding compatibility and reliability, particularly for new Raspberry Pi users.

Price Comparison

When it comes to price, the 27W PD USB C GaN Power Supply is listed at C$21.39, while the Raspberry Pi 15W USB-C Power Supply is slightly cheaper at C$20.35. The difference of C$1.04 might seem minor, but it is essential to consider the power output and additional features when evaluating overall value.

Given that the 27W unit offers higher power output and enhanced safety features, many users may find the extra cost justifiable for the benefits it provides, especially if they plan to use the Raspberry Pi 5 for power-intensive applications.

Which should you buy?

Ultimately, the choice between the 27W PD USB C GaN Power Supply and the Raspberry Pi 15W USB-C Power Supply depends on your specific needs. If you are looking for a power supply that offers higher wattage, better compatibility with the Raspberry Pi 5, and enhanced safety features, the 27W GaN Power Supply is the superior choice. However, if you are using a Raspberry Pi 4 Model B and prefer a lower-cost option with a longer cable, the Raspberry Pi 15W Power Supply would be adequate. Each product has its strengths, making them suitable for different types of users and projects.

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27W PD USB C GaN Power Supply for Raspberry Pi 5 Adapter 5.1V 5A vs Raspberry Pi 15W USB-C Power Supply US - Black | versusfinder