Raspberry Pi 4 USB-C Power Supply UK Plug vs iUniker GaN PD 27W 5.1V 5A 27W PD Power Supply USB-C for Raspberry Pi 5
Updated August 2026 — The iUniker GaN PD Power Supply offers better versatility and power output, making it a superior choice for future-proofing. However, the Raspberry Pi power supply is a reliable and economical option for Raspberry Pi 4 users.
The iUniker GaN PD Power Supply offers better versatility and power output, making it a superior choice for future-proofing. However, the Raspberry Pi power supply is a reliable and economical option for Raspberry Pi 4 users.
Why Raspberry Pi 4 USB-C Power Supply UK Plug is better
price
Raspberry Pi power supply is cheaper at £11.20
cable length
Raspberry Pi power supply has a longer 1.5m cable
official product
Raspberry Pi power supply is the official option for Raspberry Pi 4
Why iUniker GaN PD 27W 5.1V 5A 27W PD Power Supply USB-C for Raspberry Pi 5 is better
compatibility
iUniker supports Raspberry Pi 5 and 4
power output
iUniker provides 5A output compared to 3A
technology
iUniker uses advanced GaN technology for efficiency
Overall score
Specifications
| Spec | Raspberry Pi 4 USB-C Power Supply UK Plug | iUniker GaN PD 27W 5.1V 5A 27W PD Power Supply USB-C for Raspberry Pi 5 |
|---|---|---|
| Brand | Raspberry Pi | iuniker |
| Voltage | 5.1V | 5.1V |
| Max Current | 3A | 5A |
| Input Voltage | 96-264V | 100-240V |
| GaN Technology | No | Yes |
| Protection Features | Yes | Yes |
Dimension comparison
Overview
When comparing the Raspberry Pi 4 USB-C Power Supply UK Plug and the iUniker GaN PD 27W 5.1V 5A Power Supply, both products cater to Raspberry Pi users but offer different benefits. The Raspberry Pi power supply is the official option, while the iUniker model boasts advanced GaN technology, making it a compelling alternative.
The Raspberry Pi power supply is priced at £11.20, whereas the iUniker model is slightly higher at £13.79. This price difference reflects the additional features and technology used in the iUniker power supply.
Compatibility
Compatibility is a crucial consideration when choosing a power supply. The Raspberry Pi 4 USB-C Power Supply is specifically designed for the Raspberry Pi 4, ensuring seamless operation. In contrast, the iUniker GaN PD Power Supply is compatible with both Raspberry Pi 5 models (4GB and 8GB) and also works with the Raspberry Pi 4.
This broader compatibility makes the iUniker power supply a more versatile choice for users who may upgrade to a Raspberry Pi 5 in the future, providing a forward-thinking solution.
Power Output
The output specifications of a power supply directly affect its performance. The Raspberry Pi 4 USB-C Power Supply provides a steady output of 5.1V and 3A, which is sufficient for the Raspberry Pi 4. On the other hand, the iUniker power supply offers a more robust output of 5.1V and 5A, as well as additional voltages (9V, 12V, and 15V) for more demanding applications.
This higher output capability of the iUniker model allows it to cater to a wider range of devices, potentially making it a better investment for users looking to power multiple devices or work with more power-intensive projects.
Technology
The technological differences between the two power supplies are noteworthy. The Raspberry Pi power supply is a standard model that ensures reliable operation without any advanced features. In contrast, the iUniker power supply utilises GaN technology, which allows for a smaller form factor while maintaining high power output and stability.
This advancement in technology means that the iUniker power supply can operate at lower temperatures and with greater efficiency, which is particularly advantageous for users who require a long-lasting and reliable power source.
Cable Length and Type
Cable length and type can impact the convenience and usability of a power supply. The Raspberry Pi 4 USB-C Power Supply features a 1.5m captive cable, which provides ample length for most setups. The iUniker power supply, however, comes with a shorter 120mm cable, which may limit flexibility in placement and usage.
While the shorter cable of the iUniker model may be a drawback for some users, its compact design may appeal to those with limited space or who prefer a more streamlined setup.
Protection Features
Both power supplies include essential protection features, but they differ in scope. The Raspberry Pi 4 USB-C Power Supply offers protection against short circuits, overcurrent, and overheating, which are critical for safe operation. Similarly, the iUniker GaN PD Power Supply also provides overvoltage, overcurrent, and short circuit protection.
However, the presence of additional voltage output options in the iUniker model may require more comprehensive protection measures, making its protection features crucial for users who may utilise those extra capabilities.
Price Point
Pricing is a significant factor when choosing between these two options. The Raspberry Pi 4 USB-C Power Supply is priced at £11.20, making it an economical choice for those who need a reliable power supply specifically for the Raspberry Pi 4. Conversely, the iUniker GaN PD Power Supply is priced at £13.79, reflecting its advanced technology and broader compatibility.
While the iUniker model comes with a higher price tag, its additional features and versatility may justify the cost for certain users, especially those looking to future-proof their setup.
Which should you buy?
Choosing between the Raspberry Pi 4 USB-C Power Supply and the iUniker GaN PD Power Supply largely depends on your specific needs. If you are looking for a reliable, cost-effective power supply for the Raspberry Pi 4, the Raspberry Pi model is an excellent choice. However, if you desire greater versatility, higher power output, and advanced technology, the iUniker model may be worth the extra investment. Ultimately, assess your current and future needs to make the best decision for your Raspberry Pi projects.
versusfinder.com is a participant in the Amazon Services LLC Associates Programme and the Amazon EU Associates Programme. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

