SoulBay Raspberry Pi Power Supply, SoulBay 5V 3A Micro USB vs R∞RasTech RasTech for Raspberry Pi 5 GaN PD 27W Power Supply
Updated August 2026 — SoulBay Raspberry Pi Power Supply, SoulBay 5V 3A Micro USB wins on cable length and weight, R∞RasTech RasTech for Raspberry Pi 5 GaN PD 27W Power Supply wins on output and current.
The RasTech power supply offers higher output and advanced safety features, making it a better choice for demanding applications.
Why SoulBay Raspberry Pi Power Supply, SoulBay 5V 3A Micro USB is better
Price
SoulBay is $1 cheaper.
Cable Length
SoulBay has a longer cable.
Compatibility
SoulBay is designed for older Raspberry Pi models.
Why R∞RasTech RasTech for Raspberry Pi 5 GaN PD 27W Power Supply is better
Power Output
RasTech provides 5A output.
Safety Features
RasTech has a six-layer protection system.
Versatility
RasTech supports a wider range of peripherals.
Overall score
Specifications
| Spec | SoulBay Raspberry Pi Power Supply, SoulBay 5V 3A Micro USB | R∞RasTech RasTech for Raspberry Pi 5 GaN PD 27W Power Supply |
|---|---|---|
| Voltage | 5V | 5.1V |
| Amperage | 3A | 5A |
| Certification | ETL, CE, FCC | 6-layer protection |
| Compatibility | Raspberry Pi 3/2 | Raspberry Pi 5 |
| Cable Type | Micro USB | USB-C |
Dimension comparison
Overview of Power Supply Options
When considering power supplies for your Raspberry Pi, the SoulBay Raspberry Pi Power Supply and the RasTech for Raspberry Pi 5 GaN PD Power Supply present two distinct options. The SoulBay model is priced at $11.99, while the RasTech is slightly higher at $12.99, making the latter about 8% more expensive. Both power supplies are designed to meet the specific needs of Raspberry Pi devices, but they offer different features and capabilities suited to different models.
Compatibility with Raspberry Pi Models
The SoulBay Raspberry Pi Power Supply is specifically designed for Raspberry Pi 3 Model B, B+, R-Pi 2 Model B+, and other similar models, while the RasTech power supply is tailored for the Raspberry Pi 5 across various RAM configurations (16GB, 8GB, 4GB, 2GB). This distinction is crucial for users who may own different models of Raspberry Pi, as each power supply is optimized to deliver the appropriate voltage and current for its intended device.
Power Output and Efficiency
The SoulBay Raspberry Pi Power Supply offers an output of 5V at 3A, providing enough power for Raspberry Pi's requirements, whereas the RasTech power supply boasts a higher output of 5.1V at 5A. This additional power capacity allows the RasTech model to support a wider range of peripherals and is beneficial for users who intend to operate their Raspberry Pi at full load. The 5A rating of the RasTech power supply makes it a more robust option for demanding applications.
Cable Length and Convenience
One of the features that stands out in the SoulBay Raspberry Pi Power Supply is its 6-foot long cable, which provides extra flexibility in positioning your Raspberry Pi. The RasTech power supply, on the other hand, comes with a 1.3-meter cable, which is approximately 4.3 feet long. While the difference in cable length may not seem significant, users who require more space to operate their devices may find the longer cable of the SoulBay model to be a considerable advantage.
Safety Features and Protection
Safety is a crucial consideration when choosing a power supply, and both the SoulBay and RasTech models come with certifications and protection features. The SoulBay power supply is certified by ETL, CE, and FCC, ensuring it meets safety standards. Conversely, the RasTech power supply includes a comprehensive six-layer protection system that guards against over-power, over-current, short-circuit, over-voltage, low-voltage, and electrostatic issues. This makes the RasTech model a compelling choice for users who prioritize safety and reliability in their power solutions.
Price Comparison
The SoulBay Raspberry Pi Power Supply is priced at $11.99, while the RasTech power supply is listed at $12.99. This pricing difference of $1.00 means that the SoulBay option is about 8% cheaper. For users on a budget or those who do not require the additional features of the RasTech model, the SoulBay power supply presents a cost-effective solution. However, the additional features provided by the RasTech may justify the extra expense for some users.
User Experience and Reliability
Though specific sales ranks and customer reviews are not provided, the features of each product indicate a focus on user experience. The SoulBay is designed specifically for earlier Raspberry Pi models and emphasizes safe operation with its certifications. In contrast, the RasTech power supply, with its GaN technology, promises reliable performance under full-load conditions, making it an excellent choice for users who may push their Raspberry Pi setups to the limit.
Which should you buy?
Deciding between the SoulBay Raspberry Pi Power Supply and the RasTech for Raspberry Pi 5 GaN PD Power Supply ultimately hinges on your specific needs. If you own a Raspberry Pi 3 or 2 and prioritize cost-effectiveness, the SoulBay model at $11.99 is a solid choice. However, if you are looking for a power supply that can handle more demanding tasks and offers enhanced safety features, the RasTech model priced at $12.99 is worth the additional investment. Each product has its strengths, so your choice should align with the model of Raspberry Pi you own and your power supply requirements.

