Fuhengli Computer PC Power Supply Tester, vs SAMA White 650W Power Supply - Fully Modular 80
Updated August 2026 — SAMA White 650W Power Supply - Fully Modular 80 leads on price and efficiency.
The SAMA White 650W Power Supply is the superior choice for high-performance systems, while the Computer PC Power Supply Tester is ideal for diagnostics.
Why Fuhengli Computer PC Power Supply Tester, is better
Price
Computer PC Power Supply Tester is significantly cheaper.
Portability
Lightweight aluminum alloy design.
Testing Capability
8-in-1 testing for various connectors.
Why SAMA White 650W Power Supply - Fully Modular 80 is better
Efficiency
80 PLUS Gold certification for high efficiency.
Modularity
Fully modular design for better cable management.
Warranty
5-year warranty for reliability.
Overall score
Specifications
| Spec | Fuhengli Computer PC Power Supply Tester, | SAMA White 650W Power Supply - Fully Modular 80 |
|---|---|---|
| Power Rating | N/A | 650W |
| Certification | N/A | 80 PLUS Gold |
| Connector Types | 8-in-1 | ATX 3.1, PCIe 5.1 |
| Cooling | N/A | 120mm ECO Fan |
| Build Material | Aluminum Alloy | Steel |
Dimension comparison
Overview of the Products
The Computer PC Power Supply Tester is priced at $15.99, while the SAMA White 650W Power Supply costs $62.99. This represents a significant price difference of about 294%. The two products serve different purposes, with the tester aimed at diagnosing power supplies and the SAMA power supply designed to provide reliable power to computer systems. Understanding the functions and features of both can help potential buyers make an informed decision based on their specific needs.
Intended Use and Functionality
The Computer PC Power Supply Tester is designed for those who need to verify the functionality of various power supply connections, including ATX, SATA, and PCI-e. It offers an 8-in-1 testing capability, which is particularly useful for technicians and hobbyists who frequently work on computers. In contrast, the SAMA White 650W Power Supply provides the essential power for high-performance PCs, supporting modern GPUs like the RTX 30 and 40 series. While the tester is a diagnostic tool, the SAMA power supply is a critical component for powering systems efficiently.
Build Quality and Design
The Computer PC Power Supply Tester features an aluminum alloy enclosure, making it lightweight and durable. This design choice aids in thermal conductivity and corrosion resistance, ensuring reliability during testing. The SAMA White 650W Power Supply boasts a fully modular design that promotes streamlined cable management, improving airflow and aesthetics within a PC build. Both products are constructed with attention to detail, but they cater to very different aspects of a computer's functionality.
Efficiency and Performance
Efficiency is a key factor for any power supply, and the SAMA White 650W Power Supply excels with its 80 PLUS Gold certification, achieving up to 91.15% efficiency at 50% load. This high efficiency translates to reduced energy waste and improved system stability, making it an excellent choice for gamers and professionals alike. On the other hand, the Computer PC Power Supply Tester does not apply to efficiency metrics; instead, it ensures that power supplies are functioning correctly, which indirectly supports the overall performance of a system by preventing faulty power delivery.
Noise Levels
When it comes to operational noise, the SAMA White 650W Power Supply is equipped with a 120mm ECO fan that operates at noise levels as low as 20 dB-A. This quiet operation is crucial for building a gaming rig or workstation, where noise can be distracting. The Computer PC Power Supply Tester, however, does not have a noise specification as it is not a power supply but rather a testing tool. Thus, in terms of noise levels, the SAMA power supply has a clear advantage for users concerned about sound.
Warranty and Reliability
Reliability is paramount when it comes to power supplies, and the SAMA White 650W Power Supply comes with a 5-year warranty, underscoring its durability and manufacturer’s confidence in the product. In contrast, the Computer PC Power Supply Tester does not mention any warranty, which may be a consideration for buyers looking for long-term reliability. The longer warranty on the SAMA power supply can give users peace of mind, especially when investing in high-end components.
Price Comparison
The price difference between the two products is notable, with the Computer PC Power Supply Tester costing $15.99 and the SAMA White 650W Power Supply priced at $62.99. This means the tester is about 76% cheaper than the power supply. For users specifically looking for a power supply, the SAMA product offers a range of features justifying its higher price. However, for those who only need to test power supplies, the tester is a budget-friendly option that performs a critical function without breaking the bank.
Which should you buy?
Choosing between the Computer PC Power Supply Tester and the SAMA White 650W Power Supply boils down to your needs. If you require a reliable power supply for a high-performance computer, the SAMA is the clear winner with its efficiency, modular design, and warranty. On the other hand, if you're a technician or hobbyist needing to test various power supplies, the Computer PC Power Supply Tester offers an essential function at a very affordable price. Ultimately, your choice should align with whether you need a power supply unit or a testing tool.

