iRasptek 27W 5.1V/5A USB-C PD Power Adapter for Raspberry Pi 5 (White) vs Sirlyr PSU Cable Extension Kit
Updated August 2026 — The iRasptek power adapter excels in functionality and value for Raspberry Pi users, while the Sirlyr kit offers aesthetic enhancements for PC builds. Overall, the iRasptek is the better choice for power delivery.
The iRasptek power adapter excels in functionality and value for Raspberry Pi users, while the Sirlyr kit offers aesthetic enhancements for PC builds. Overall, the iRasptek is the better choice for power delivery.
Why iRasptek 27W 5.1V/5A USB-C PD Power Adapter for Raspberry Pi 5 (White) is better
power output
iRasptek provides 5.1V/5A output for high-demand peripherals
price
iRasptek is cheaper at £11.88 compared to £17.94
compatibility
iRasptek supports multiple power profiles for various devices
Why Sirlyr PSU Cable Extension Kit is better
aesthetic design
Sirlyr offers a premium all-white design with braided cables
cable management
Sirlyr includes pre-installed cable combs for organization
stability
Sirlyr's cables are designed for high-end gaming setups
Overall score
Specifications
| Spec | iRasptek 27W 5.1V/5A USB-C PD Power Adapter for Raspberry Pi 5 (White) | Sirlyr PSU Cable Extension Kit |
|---|---|---|
| Brand | iRasptek | Sirlyr |
| Input Voltage | 100-240V | N/A |
| Cable Type | 17AWG | 16AWG |
| Power Delivery | Yes | No |
| Pre-installed Combs | No | Yes |
| Max Power | 27W | 1600W |
Dimension comparison
Overview of the Products
The iRasptek 27W 5.1V/5A USB-C PD Power Adapter for Raspberry Pi 5 is designed specifically for powering the Raspberry Pi 5, while the Sirlyr PSU Cable Extension Kit is aimed at enhancing cable management in high-performance desktop systems. At £11.88, the iRasptek power adapter provides versatile compatibility with USB Power Delivery devices, whereas the Sirlyr kit, priced at £17.94, focuses on aesthetic and functional improvements for PC setups.
Design and Aesthetics
The iRasptek power adapter features a clean white design, which complements the Raspberry Pi 5. Its 1.5m cable is not only practical but also sleek, making it suitable for various setups. In contrast, the Sirlyr PSU Cable Extension Kit boasts an all-white appearance with glossy nylon braided cables, appealing to users looking for a premium look in their desktop systems. The kit includes pre-installed cable combs for better organisation, ensuring a tidy setup.
Functionality and Performance
The iRasptek power adapter delivers a robust output of 5.1V and 5A, making it capable of powering high-demand peripherals such as hard drives and SSDs connected to the Raspberry Pi 5. This high power delivery allows for an automatic increase in the USB current limit, ensuring efficient performance. On the other hand, the Sirlyr PSU Cable Extension Kit is designed for stability and performance, featuring a 16 AWG thickened alloy copper core that supports power supplies from 800W to 1600W, catering to high-end gaming and PC builds.
Compatibility
The iRasptek power adapter is primarily designed for the Raspberry Pi 5 but also supports third-party PD-compatible products, offering additional profiles of 9V, 3A; 12V, 2.25A; and 15V, 1.8A. This versatility makes it an excellent choice for users who may want to power various devices beyond the Raspberry Pi. In comparison, the Sirlyr PSU Cable Extension Kit is compatible with a wide range of power supplies and is ideal for users looking to extend their existing PSU cables while maintaining a clean aesthetic.
Installation and Ease of Use
The iRasptek power adapter is straightforward to use; simply plug it into an outlet and connect it to the Raspberry Pi 5 or other compatible devices. The power adapter's automatic current limit increase feature simplifies the process of managing power demands for connected peripherals. Conversely, the Sirlyr PSU Cable Extension Kit, while easy to install, requires a bit more effort in terms of managing the cables and ensuring proper organisation, especially with the inclusion of additional combs for customization.
Price and Value
Retailing at £11.88, the iRasptek power adapter offers great value for Raspberry Pi users, considering its high output and compatibility with various devices. Its performance is tailored for those who require a reliable power source for high-demand applications. The Sirlyr PSU Cable Extension Kit, priced at £17.94, offers extensive compatibility and aesthetic appeal, but its value is contingent upon the user's need for enhanced cable management rather than direct power supply functionality.
Customer Base
The iRasptek power adapter is targeted towards Raspberry Pi enthusiasts, especially those who utilise the device for projects requiring more power, such as connecting multiple peripherals. Its high power delivery capability is a significant selling point for this demographic. In contrast, the Sirlyr PSU Cable Extension Kit appeals to gamers and PC builders who prioritise aesthetics and performance. Its design and functionality cater to those looking to build visually pleasing and highly functional desktop systems.
Which should you buy?
Choosing between the iRasptek 27W 5.1V/5A USB-C PD Power Adapter and the Sirlyr PSU Cable Extension Kit ultimately depends on your specific needs. If you are looking for a reliable power source for the Raspberry Pi 5 or other USB PD-compatible devices, the iRasptek power adapter at £11.88 offers excellent functionality and versatility. However, if your priority lies in enhancing the aesthetic and management of your desktop build, the Sirlyr PSU Cable Extension Kit, priced at £17.94, provides a premium solution for high-performance setups.
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