NVVV MDR-20-12 AC to DC DIN-Rail Power Supply 12V 1.67 Amp 20W vs GeeekPi 18W 5V 3.6A Power Supply for Raspberry Pi 4
Updated August 2026 — The NVVV power supply is better for general use, while the GeeekPi is tailored for Raspberry Pi devices. Choose based on your specific needs.
The NVVV power supply is better for general use, while the GeeekPi is tailored for Raspberry Pi devices. Choose based on your specific needs.
Why NVVV MDR-20-12 AC to DC DIN-Rail Power Supply 12V 1.67 Amp 20W is better
higher voltage
NVVV provides 12V output compared to 5V from GeeekPi
higher power
NVVV has a maximum output power of 20W versus 18W for GeeekPi
versatility
NVVV can power various devices, not just Raspberry Pi
Why GeeekPi 18W 5V 3.6A Power Supply for Raspberry Pi 4 is better
lower price
GeeekPi is priced at C$16.99, cheaper than NVVV at C$21.41
safety features
GeeekPi includes multiple safety certifications and protections
user convenience
GeeekPi has an ON/OFF switch for easy control
Overall score
Specifications
| Spec | NVVV MDR-20-12 AC to DC DIN-Rail Power Supply 12V 1.67 Amp 20W | GeeekPi 18W 5V 3.6A Power Supply for Raspberry Pi 4 |
|---|---|---|
| Brand | NVVV | GeeekPi |
| Input Voltage | 85-264V AC | 100-240V AC |
| Output Current | 1.67A | 3.6A |
| Output Voltage | 12V | 5V |
| Certification | None | UL, TUV, RoHS |
Dimension comparison
Overview of the Products
The NVVV MDR-20-12 AC to DC DIN-Rail Power Supply and the GeeekPi 18W 5V 3.6A Power Supply serve distinct purposes in powering electronic devices. The NVVV power supply is designed for general use, providing a steady 12V output suitable for various applications, while the GeeekPi power supply is specifically made for Raspberry Pi devices, offering a 5V output tailored for optimal performance. Understanding their specifications will help determine which is more suitable for your needs.
Price Comparison
The NVVV power supply is priced at C$21.41, while the GeeekPi power supply is more affordable at C$16.99. This makes the GeeekPi a more budget-friendly option, saving you C$4.42 if you choose it over the NVVV model. Price can be a significant factor when selecting a power supply, especially for hobbyists or those on a tight budget looking for reliable performance without overspending.
Output Specifications
The NVVV power supply delivers a primary output voltage of 12V with an output current of 1.67A, resulting in a maximum output power of 20W. In contrast, the GeeekPi offers an output voltage of 5V and a current of 3.6A, leading to a total power output of 18W. While the NVVV provides a higher voltage and power rating, the GeeekPi is specifically engineered for devices requiring 5V, like the Raspberry Pi, ensuring compatibility and efficiency for such applications.
Compatibility and Application
The NVVV power supply is a versatile option that can be used in various applications thanks to its 12V output. It is suitable for powering different electronic devices and systems. The GeeekPi, however, is designed exclusively for Raspberry Pi models, particularly the Raspberry Pi 4, but also includes an adapter for earlier models like the 3B+ and 3B. If you own a Raspberry Pi, the GeeekPi ensures seamless power delivery tailored for that specific platform.
Safety Features
The NVVV power supply does not explicitly mention safety features in the provided data, which can be a concern if you are looking for additional protection measures. On the other hand, the GeeekPi power supply boasts several safety certifications including UL Listed Certification, TUV, and RoHS Certification. It also includes multiple protection functions such as over voltage protection, under voltage protection, over temperature protection, over current protection, and short circuit protection. These features enhance the reliability and safety of the GeeekPi, making it a compelling choice for powering sensitive electronics.
Design and Usability
The NVVV power supply has a straightforward design intended for DIN rail mounting, which can be advantageous in industrial or organized environments where space-saving is critical. The simplicity of its design allows for easy integration into various setups. Conversely, the GeeekPi power supply includes an ON/OFF switch, providing users with added convenience to easily control the power supply to their Raspberry Pi. This feature can be particularly useful for users who want to avoid unplugging the power supply frequently.
Brand Reputation
Both NVVV and GeeekPi have established themselves in the power supply market, but their focuses differ. NVVV is known for its robust general-purpose power supplies suitable for various applications, while GeeekPi has carved a niche primarily focused on Raspberry Pi accessories, catering to a dedicated community of tech enthusiasts. This specialization might make the GeeekPi more appealing to those specifically seeking power solutions for Raspberry Pi projects.
Which should you buy?
Choosing between the NVVV MDR-20-12 AC to DC DIN-Rail Power Supply and the GeeekPi 18W 5V 3.6A Power Supply ultimately depends on your specific needs. If you require a versatile power source for various electronic devices, the NVVV might be the better option due to its higher voltage and power output. However, if you are looking for a reliable and safe power supply specifically for Raspberry Pi devices, the GeeekPi is a more cost-effective choice. Its safety certifications and user-friendly features make it ideal for ensuring stable operation of your Raspberry Pi projects.
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