Hafiuege 27W USB-C Power Supply Compatible with Raspberry Pi 5 vs JUSTOP Black 700W Power Supply Unit ATX PSU With 120MM Quiet Fan
Updated August 2026 — The Hafiuege 27W USB-C Power Supply is ideal for portable use with Raspberry Pi devices, while the JUSTOP Black 700W Power Supply Unit is better suited for high-performance desktop systems. Choose based on your specific power needs.
The Hafiuege 27W USB-C Power Supply is ideal for portable use with Raspberry Pi devices, while the JUSTOP Black 700W Power Supply Unit is better suited for high-performance desktop systems. Choose based on your specific power needs.
Why Hafiuege 27W USB-C Power Supply Compatible with Raspberry Pi 5 is better
price
Hafiuege is cheaper at £9.98
size
Hafiuege is more compact and portable
specific use
Hafiuege is designed for Raspberry Pi 5
Why JUSTOP Black 700W Power Supply Unit ATX PSU With 120MM Quiet Fan is better
power output
JUSTOP provides 700W compared to Hafiuege's 27W
compatibility
JUSTOP supports a wider range of components
cooling system
JUSTOP has a dedicated cooling fan for better performance
Overall score
Specifications
| Spec | Hafiuege 27W USB-C Power Supply Compatible with Raspberry Pi 5 | JUSTOP Black 700W Power Supply Unit ATX PSU With 120MM Quiet Fan |
|---|---|---|
| Output Power | 27W | 700W |
| Cooling | None | 120mm Fan |
| Warranty | 24 months | Not specified |
| Safety Certifications | Basic | CE / FCC / UL / TUV |
| Compatibility | Raspberry Pi 5 | ATX / EPS standards |
Dimension comparison
Overview of the Products
In this comparison, we will examine the Hafiuege 27W USB-C Power Supply and the JUSTOP Black 700W Power Supply Unit. While both products serve the purpose of delivering electrical power, they cater to different needs and devices, making them suitable for various users. The Hafiuege power supply retails at £9.98, while the JUSTOP unit is priced at £29.95, reflecting their differing capabilities and intended applications.
Design and Build Quality
The Hafiuege 27W USB-C Power Supply is designed specifically for use with the Raspberry Pi 5, featuring GaN technology that allows for a compact form factor without compromising power output. Its small size and light weight make it an ideal choice for users who require portability. In contrast, the JUSTOP Black 700W Power Supply Unit is larger, designed for desktop setups, and incorporates a 120mm quiet cooling fan, enhancing airflow while keeping noise levels down to 40dBA. This design is ideal for users who need a more robust power solution for their PCs.
Performance
The Hafiuege power supply delivers a maximum output of 27W, with multiple voltage outputs of 5V at 5.1A, 9V at 3A, 12V at 2.25A, and 15V at 1.8A. This versatility allows it to charge various devices rapidly, making it particularly suitable for users of the Raspberry Pi 5 or other USB-C compatible devices. On the other hand, the JUSTOP power supply offers a substantial 700W output, making it capable of supporting high-performance components such as graphics cards and multiple hard drives in a gaming or workstation PC. This significant difference in power output underlines the intended use cases of both products.
Compatibility
The Hafiuege power supply is specifically compatible with the Raspberry Pi 5, but it also supports various devices, including mobile phones and laptops, due to its USB-C connection. This universal compatibility makes it a versatile choice for users with multiple devices. The JUSTOP unit, however, is designed to meet ATX 12V v.2.3 and EPS 12V v.2.92 standards, ensuring compatibility with a wide range of motherboards and CPUs. This makes it an excellent choice for builders looking to create or upgrade a desktop PC.
Safety Features
Safety is crucial when it comes to power supplies, and both products offer a range of protective features. The Hafiuege 27W power supply includes overcurrent protection, short-circuit protection, overvoltage protection, undervoltage protection, overtemperature protection, and electrostatic protection, ensuring safe usage for its intended devices. Meanwhile, the JUSTOP Black 700W unit boasts over voltage protection, over power protection, short circuit protection, and thermal overload cut-off protection. Both power supplies are equipped with essential safety features, but the JUSTOP unit's broader range of protections may be more reassuring for users operating high-performance systems.
Cooling Mechanisms
The Hafiuege 27W power supply relies on its compact design and GaN technology for efficient heat management, making it suitable for low-heat applications. However, it does not have a dedicated cooling system. In contrast, the JUSTOP Black 700W Power Supply Unit features a 120mm quiet cooling fan, which actively circulates air to keep the unit cool during high-load situations. This difference highlights the JUSTOP’s ability to maintain optimal performance under stress, making it a better choice for high-demand desktop environments.
Customer Support and Warranty
The Hafiuege power supply comes with a 24-month warranty, indicating the manufacturer's confidence in its product and providing customers with peace of mind. The commitment to customer service is also a highlight, as Hafiuege aims to offer first-class products at competitive prices. Although the JUSTOP unit does not explicitly mention a warranty in the provided information, it is safety-certified by CE, FCC, UL, and TUV, which can provide an additional layer of assurance regarding its quality and reliability.
Price Comparison
The pricing of these two power supplies reflects their differing functionalities and specifications. The Hafiuege 27W USB-C Power Supply is priced at £9.98, making it an affordable option for casual users or those needing a power supply for specific devices like the Raspberry Pi 5. Conversely, the JUSTOP Black 700W Power Supply Unit is available for £29.95, which is a reasonable price considering its higher wattage, compatibility with multiple components, and enhanced safety features. Users must weigh their needs against their budgets when deciding between these two products.
Which should you buy?
Choosing between the Hafiuege 27W USB-C Power Supply and the JUSTOP Black 700W Power Supply Unit ultimately depends on your specific requirements. If you need a compact, versatile power supply primarily for charging the Raspberry Pi 5 or other USB-C devices, the Hafiuege model is an excellent choice at £9.98. However, if you are building or upgrading a desktop PC and require a powerful and reliable unit that can support high-performance components, the JUSTOP unit is worth the investment at £29.95. Each product serves its purpose well; thus, your decision should align with your power needs and device compatibility.
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