Security-01 DC 9V 1.5A Power Supply 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 27W Power Supply is the superior choice for versatility and safety features, while the Security-01 is a budget option for specific needs.
The iUniker GaN PD 27W Power Supply is the superior choice for versatility and safety features, while the Security-01 is a budget option for specific needs.
Why Security-01 DC 9V 1.5A Power Supply is better
lower price
Security-01 is £9.98 compared to iUniker's £13.79
specific compatibility
Security-01 works with various exercise equipment
longer cable
Security-01 has a 2m cable length
Why iUniker GaN PD 27W 5.1V 5A 27W PD Power Supply USB-C for Raspberry Pi 5 is better
higher power output
iUniker provides up to 27W compared to Security-01's 13.5W
advanced technology
iUniker uses GaN technology for efficiency
safety features
iUniker includes over-voltage and over-current protection
Overall score
Specifications
| Spec | Security-01 DC 9V 1.5A Power Supply | iUniker GaN PD 27W 5.1V 5A 27W PD Power Supply USB-C for Raspberry Pi 5 |
|---|---|---|
| Brand | Security-01 | iuniker |
| Input Voltage | AC 100-240V | 100-240V |
| Connector Type | 5.5mm x 2.1mm | USB-C |
| Output Current | 1.5A | 5A |
| Protection | none | yes |
Dimension comparison
Overview of the Security-01 DC 9V 1.5A Power Supply
The Security-01 DC 9V 1.5A Power Supply is priced at £9.98, making it an affordable option for those requiring a specific voltage for various devices. This power supply is compatible with a range of devices, particularly exercise equipment and certain electronics. While it offers a straightforward solution for powering equipment that accepts a 9V input with a centre-positive connection, it is not universally compatible, which may limit its use for some consumers.
Overview of the iUniker GaN PD 27W Power Supply
The iUniker GaN PD 27W Power Supply is priced at £13.79 and designed primarily for Raspberry Pi models, specifically the Raspberry Pi 5. This power supply benefits from GaN technology, allowing it to maintain a compact size without compromising power output or efficiency. It is versatile, offering multiple output voltages, which may appeal to tech-savvy users looking for a reliable power solution for their projects.
Compatibility
The Security-01 power supply is compatible with a wide array of devices, such as the Schwinn elliptical machine and various Arduino models. It operates at 9V and 1.5A, with a specific connector size of 5.5mm x 2.1mm, crucial for ensuring proper functionality. However, it is important to note that it only works with devices requiring a centre-positive connection, which restricts its use with certain equipment that needs a centre-negative adapter.
In contrast, the iUniker power supply is designed for the Raspberry Pi 5 and supports various output voltages including 5.1V/5A, 9V/3A, and others, making it suitable for a wider range of devices beyond just the Raspberry Pi. This level of versatility may appeal to users who own multiple devices or who need a power supply that can adapt to different specifications.
Power Output
The Security-01 power supply delivers a fixed output of 9V and 1.5A, which is sufficient for many low-power devices but may not be adequate for those requiring more power. This can limit its usability for high-demand electronics or projects requiring more than 1.5A.
On the other hand, the iUniker power supply provides a more powerful output of 27W, with various voltage options. Its ability to deliver up to 5A at 5.1V means it can easily handle devices that require higher power levels or different voltage inputs. This flexibility in output makes the iUniker a potentially more valuable investment for users with diverse power needs.
Size and Design
The Security-01 power supply is a standard size for a power adapter, with a cable length of 2m, which provides some flexibility in placement. However, its bulkiness compared to modern alternatives may make it less appealing to those who prefer a more compact design.
The iUniker power supply utilises GaN technology, which allows for a smaller and more efficient design. This technology enables it to operate at lower temperatures while delivering high power, making it a modern choice for users who value both aesthetics and performance. The compact size of the iUniker may also be beneficial for those with limited space or for use in portable setups.
Safety Features
The Security-01 power supply does not explicitly mention any safety features in its specifications, which may raise concerns for users prioritising safety in their electronics. The lack of over-voltage or over-current protection could potentially pose risks when used with sensitive devices.
In contrast, the iUniker power supply includes built-in safety features such as over-voltage, over-current, and short circuit protection. This makes it a much safer option for users, particularly those powering sensitive electronics like the Raspberry Pi, providing peace of mind that their devices will be protected from potential electrical issues.
Price Comparison
The Security-01 power supply is priced at £9.98, making it a budget-friendly option for those who need a simple power solution for compatible devices. Its cost-effectiveness may appeal to users with specific needs or those looking to power non-critical devices.
The iUniker GaN PD power supply is slightly more expensive at £13.79, but the additional cost can be justified by its advanced technology, versatility, and safety features. For users who require a reliable power supply for demanding devices or who appreciate the benefits of GaN technology, the extra investment may be well worth it.
Which should you buy?
Choosing between the Security-01 DC 9V 1.5A Power Supply and the iUniker GaN PD 27W Power Supply ultimately depends on your specific needs. If you require a simple, low-cost solution for devices compatible with a centre-positive 9V input, the Security-01 may suffice. However, for those needing a versatile power supply with multiple output options and enhanced safety features, the iUniker GaN PD power supply is the better choice. Its advanced technology and compatibility with a wider range of devices make it a more future-proof investment.
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