GeeekPi 27W Power Supply for Raspberry Pi 5 vs OwlTree 2 Pack EPS12V CPU 8 Pin Female to CPU ATX 8 Pin and ATX 4 Pin Male Power
Updated August 2026 — The GeeekPi 27W Power Supply is the better choice for Raspberry Pi users due to its specialized features and safety measures, while the OwlTree 2 Pack is a budget-friendly option for PC builders.
The GeeekPi 27W Power Supply is the better choice for Raspberry Pi users due to its specialized features and safety measures, while the OwlTree 2 Pack is a budget-friendly option for PC builders.
Why GeeekPi 27W Power Supply for Raspberry Pi 5 is better
specialized design
Designed specifically for Raspberry Pi devices.
safety features
Includes over-current and over-voltage protection.
power delivery
Supports multiple output voltages for versatility.
Why OwlTree 2 Pack EPS12V CPU 8 Pin Female to CPU ATX 8 Pin and ATX 4 Pin Male Power is better
lower price
More affordable option at C$10.99.
adapter versatility
Compatible with various ATX configurations.
dual pack
Includes two cables for added value.
Overall score
Specifications
| Spec | GeeekPi 27W Power Supply for Raspberry Pi 5 | OwlTree 2 Pack EPS12V CPU 8 Pin Female to CPU ATX 8 Pin and ATX 4 Pin Male Power |
|---|---|---|
| Brand | GeeekPi | OwlTree |
| Model | 27W Power Supply | 2 Pack EPS12V |
| Input Voltage | 100-240V | N/A |
| Output Options | 5V, 9V, 12V, 15V | N/A |
| Cable Type | N/A | UL1007 18AWG |
Dimension comparison
Overview of the Products
When choosing between the GeeekPi 27W Power Supply for Raspberry Pi 5 and the OwlTree 2 Pack EPS12V CPU 8 Pin Female to CPU ATX 8 Pin, it's essential to understand their distinct purposes and compatibility. The GeeekPi power supply is specifically designed for Raspberry Pi devices, while the OwlTree product serves as an adapter for power connections in motherboards with ATX ports.
The GeeekPi power supply is priced at C$21.99, offering a robust solution for Raspberry Pi users, particularly those using the Raspberry Pi 5 models with 4GB or 8GB of RAM. In contrast, the OwlTree offering is more budget-friendly at C$10.99, providing a dual-pack of adapter cables that are compatible with various ATX configurations.
Compatibility with Devices
Compatibility is a crucial factor when selecting a power supply or adapter. The GeeekPi 27W Power Supply is explicitly designed for the Raspberry Pi 5, ensuring optimal performance for both the 4GB and 8GB variants. This makes it an ideal choice for Raspberry Pi enthusiasts seeking reliable power.
On the other hand, the OwlTree 2 Pack is compatible with motherboards featuring ATX 4 pin, 8 pin, or 8+4 pin ports. This versatility allows it to be used across various systems, though it is not suitable for use with PCI-Express video cards. The inclusion of both 8 pin and 4 pin connectors enhances its compatibility, catering to a wider audience.
Power Delivery Capabilities
The power delivery capabilities of the products show a significant difference. The GeeekPi 27W Power Supply supports Power Delivery technology, enabling fast and efficient charging. It features multiple output options, including 5V at 5A, 9V at 3A, 12V at 2.25A, and 15V at 1.8A. This flexibility makes it suitable for a range of devices beyond just the Raspberry Pi, allowing users to charge various gadgets.
In contrast, the OwlTree 2 Pack does not provide any power delivery features as it is primarily an adapter. It facilitates the connection between the power supply unit (PSU) and the motherboard but does not regulate voltage or current levels, placing it in a different category of power management.
Design and Portability
When considering design and portability, the GeeekPi power supply excels with its compact form factor. Its lightweight and travel-friendly design make it easy to carry, ensuring that Raspberry Pi users have a reliable power source on the go. This is particularly beneficial for those who attend workshops or events where Raspberry Pi projects might be showcased.
The OwlTree 2 Pack, while functional, is designed as a cable adapter and lacks the compactness of a dedicated power supply. Its length of 10.6 inches is practical for connecting components within a PC case, but it does not offer the same level of portability as the GeeekPi power supply.
Safety Features
Safety features are paramount in any power-related product. The GeeekPi 27W Power Supply includes built-in safety measures such as over-current protection, over-voltage protection, and short-circuit protection. These features ensure that connected devices are safeguarded against electrical issues, making it a reliable choice for users concerned about the longevity and safety of their Raspberry Pi.
Conversely, the OwlTree 2 Pack does not explicitly mention any safety features. Its role as a simple adapter means that it relies on the power supply unit's safety mechanisms. Users must ensure that their PSU has appropriate protections in place when using these adapters.
Pricing Considerations
Pricing plays a significant role in decision-making. The GeeekPi 27W Power Supply is priced at C$21.99, which reflects its specialized design and features tailored for Raspberry Pi devices. This price is justified by its advanced capabilities, including Power Delivery and multiple voltage outputs.
The OwlTree 2 Pack is a more economical option at C$10.99, appealing to those who need a basic connection solution for their ATX motherboards. While it lacks advanced features, its lower price point makes it an attractive option for users seeking simple cable solutions without the need for additional functionality.
Target Audience
The target audience for each product varies significantly due to their intended use cases. The GeeekPi 27W Power Supply is aimed primarily at Raspberry Pi users, particularly those involved in projects that require stable and efficient power. Its features cater specifically to the needs of these users, making it an ideal choice for hobbyists and educators alike.
In contrast, the OwlTree 2 Pack is designed for PC builders and users who need a reliable method to connect their power supplies to motherboards. Its compatibility with various ATX configurations makes it suitable for a broader audience, including gamers and professionals building custom PCs.
Which should you buy?
Choosing between the GeeekPi 27W Power Supply for Raspberry Pi 5 and the OwlTree 2 Pack EPS12V CPU 8 Pin Female to CPU ATX 8 Pin largely depends on your specific needs. If you own a Raspberry Pi and require a dedicated power solution that offers versatility, safety features, and portability, the GeeekPi is an excellent investment at C$21.99. However, if you are looking for a budget-friendly adapter for your PC build that provides basic connectivity, the OwlTree 2 Pack at C$10.99 is a practical choice. Ultimately, your decision should be guided by the devices you intend to power and the specific functionalities you require.
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