DKE PC Power Button Desktop PC Computer Case Power vs SUPERNIGHT 12V 30A Switching Power Supply, 110-240
Updated August 2026 — DKE PC Power Button Desktop PC Computer Case Power wins on price and ease of use, SUPERNIGHT 12V 30A Switching Power Supply, 110-240 wins on durability and support.
The DKE PC Power Button is an affordable and easy-to-use option for controlling a desktop PC, while the SUPERNIGHT Power Supply offers greater versatility and protection for various devices.
Why DKE PC Power Button Desktop PC Computer Case Power is better
price
DKE is significantly cheaper at $6.99
ease of use
Simple installation with clear instructions
size
Compact and lightweight design
Why SUPERNIGHT 12V 30A Switching Power Supply, 110-240 is better
versatility
Can power multiple devices like 3D printers and LED strips
protection features
Includes overcharge and short-circuit protection
warranty
Offers a 30-day return policy and 1-year replacement assurance
Overall score
Specifications
| Spec | DKE PC Power Button Desktop PC Computer Case Power | SUPERNIGHT 12V 30A Switching Power Supply, 110-240 |
|---|---|---|
| Power Type | Switch | Supply |
| Input Voltage | N/A | 100-240V |
| Output Voltage | N/A | 12V |
| Max Current | N/A | 30A |
| Protection | None | Yes |
Dimension comparison
Overview of DKE PC Power Button and SUPERNIGHT Power Supply
The DKE PC Power Button is priced at $6.99, while the SUPERNIGHT Power Supply comes in at $20.99, making the DKE option about 67% cheaper than the SUPERNIGHT product. While both items serve essential functions for different computing needs, they cater to varying requirements in the power supply realm.
The DKE PC Power Button is designed as an external switch that facilitates easy control of your desktop PC from a distance, making it particularly useful for setups where the PC is hard to reach. In contrast, the SUPERNIGHT Power Supply is a regulated switching transformer that converts AC to DC power for various electronic devices, including 3D printers and LED strip lights, offering a more versatile utility in powering multiple devices.
Purpose and Functionality
The DKE PC Power Button serves a specific purpose: it provides a convenient way to turn a computer on or off from a distance. This is particularly beneficial for users who want to manage their PC without needing to reach under a desk or go to another room. The product features a long 2-meter cable, ensuring that it can be placed for easy access.
On the other hand, the SUPERNIGHT Power Supply is designed for a broader range of applications. With an output of 12V DC and a maximum current of 30A, it can power various devices, including 3D printers and LED lighting systems. This versatility makes it a valuable component for hobbyists and professionals who require reliable power for multiple electronics.
Price Comparison
The pricing difference between the two products is significant. The DKE PC Power Button is available for $6.99, while the SUPERNIGHT Power Supply is priced at $20.99. This means that the DKE is approximately 67% less expensive than the SUPERNIGHT, making it a budget-friendly choice for users specifically needing a power switch.
However, the higher price of the SUPERNIGHT Power Supply can be justified by its multifunctional capabilities. Designed to handle more demanding power needs, it provides a stable output and includes built-in protection features, which may appeal to users looking for a robust power solution.
Installation and User Experience
The DKE PC Power Button is designed for easy installation, with included instructions that simplify the process. Users can connect it to the motherboard and position it conveniently using an adhesive plate. This user-friendly approach ensures that even those with minimal technical skills can set it up quickly.
In contrast, the SUPERNIGHT Power Supply, while robust, may require a bit more technical know-how to install, especially when integrating it with various devices. Its versatility means it can be used in many applications, but the installation process may be more complex than simply plugging in a power switch.
Quality and Durability
The DKE PC Power Button, while small and portable, is built to serve its purpose effectively. With a thickness of only 1.5 cm and weighing just 1 ounce, it is designed for durability in a compact form. However, its primary function as a simple power switch means it may not need the same level of durability as larger power supplies.
The SUPERNIGHT Power Supply stands out in terms of quality and durability. It includes features like overcharge, overload, short-circuit, and overheat protection, which are crucial for preserving the lifespan of connected devices. This robustness is vital for users who rely on consistent power delivery for sensitive electronics, making it a more reliable choice for demanding applications.
Versatility and Compatibility
When it comes to versatility, the SUPERNIGHT Power Supply is the clear winner. It supports a wide range of devices, from 3D printers to LED strips, and operates within an input voltage range of 100V-240V. This adaptability makes it suitable for various projects and needs, providing users with a universal solution for their power supply requirements.
In comparison, the DKE PC Power Button serves a more singular purpose. While it excels in providing an easy way to control a PC, it does not offer the same level of compatibility with other electronic devices. Users looking for a multifunctional power solution will find the SUPERNIGHT Power Supply to be a more fitting choice.
Customer Support and Warranty
The SUPERNIGHT Power Supply includes a 30-day worry-free return policy, a one-year replacement assurance, and lifetime after-sale service with 24/7 customer support. This level of service can provide peace of mind for users investing in a power supply for critical applications.
Conversely, the DKE PC Power Button does not mention any warranty or customer support details. While it is a lower-cost item, the lack of such assurances may be a consideration for buyers concerned about product reliability and support.
Which should you buy?
Choosing between the DKE PC Power Button and the SUPERNIGHT Power Supply ultimately depends on your specific needs. If you are looking for an affordable and easy way to control your desktop PC, the DKE PC Power Button, priced at $6.99, is an excellent choice. However, for users needing a more versatile power solution that can handle a variety of devices, the SUPERNIGHT Power Supply, priced at $20.99, offers superior functionality and protection features. Therefore, if you require a simple power switch, the DKE is a clear winner, but for those needing a robust power supply, the SUPERNIGHT is the better investment.

