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JUSTOP Black ATX 500W PSU vs 5V Power Supply for Polycom VVX 150 250 350 450 2200-48872-001 1465-48871-001

Updated August 2026The JUSTOP Black ATX 500W PSU is the superior choice for desktop PCs, while the COLM power supply is a budget-friendly option for VoIP phones.

The JUSTOP Black ATX 500W PSU is the superior choice for desktop PCs, while the COLM power supply is a budget-friendly option for VoIP phones.

Why JUSTOP Black ATX 500W PSU is better

power output

500W vs 15W

safety features

multiple protections vs none specified

compatibility

versatile for PCs vs limited to VoIP phones

Why 5V Power Supply for Polycom VVX 150 250 350 450 2200-48872-001 1465-48871-001 is better

price

£11.98 vs £22.50

portability

6.6 ft cable vs standard desktop PSU

specific use

designed for VoIP vs general use

Overall score

JUSTOP Black ATX 500W PSU
85
5V Power Supply for Polycom VVX 150 250 350 450 2200-48872-001 1465-48871-001
60

Specifications

SpecJUSTOP Black ATX 500W PSU5V Power Supply for Polycom VVX 150 250 350 450 2200-48872-001 1465-48871-001
Output Power500W15W
Input Voltage200-240V100-240V
Warranty1 YearNone
Cooling Fan120mmNone
Protection FeaturesYesNo

Dimension comparison

JUSTOP Black ATX 500W PSU5V Power Supply for Polycom VVX 150 250 350 450 2200-48872-001 1465-48871-001

Overview of Power Supplies

When it comes to power supplies, choosing the right one can significantly impact the performance of your electronic devices. The JUSTOP Black ATX 500W PSU and the 5V Power Supply for Polycom VVX phones cater to different needs, with the former designed for desktop PCs and the latter specifically for VoIP IP phones. Priced at £22.50, the JUSTOP PSU offers a robust 500W, while the COLM power supply retails at a more budget-friendly £11.98 with a 5V output. Understanding the differences between these two products is crucial for making an informed purchase.

Design and Build Quality

The build quality of a power supply is essential for its longevity and performance. The JUSTOP Black ATX 500W PSU boasts a sleek black design, featuring a 120mm cooling fan that enhances airflow and reduces overheating, making it ideal for home or office desktop PCs. In contrast, the 5V Power Supply for Polycom phones is designed with portability in mind, featuring a 6.6 ft cable that offers flexibility in placement. While the JUSTOP is built for durability with certifications like UKCA, CE, FCC, UL, and TUV, the COLM power supply focuses on compatibility and ease of use with specific VoIP models.

Compatibility and Use Cases

Compatibility is a significant factor when selecting a power supply. The JUSTOP Black ATX 500W PSU is versatile, compatible with various brands and models of desktop PCs, and provides multiple connectors including a 20+4 pin, 4+4 pin, and multiple SATA connections. This makes it suitable for users looking to build or upgrade a PC. On the other hand, the 5V Power Supply is explicitly designed for Polycom VVX series phones, along with compatibility for select Cisco and Yealink models. If your primary need is for a desktop computer, the JUSTOP is the clear choice, while the COLM is tailored for VoIP phone systems.

Power Output and Efficiency

Power output is a critical specification that affects performance. The JUSTOP Black ATX PSU delivers a maximum output of 500W, providing stable and reliable power for demanding applications and multiple components. This power supply also features Power Factor Control (PFC) to enhance efficiency. Comparatively, the 5V Power Supply for Polycom phones offers a modest output of 5V and 3A, translating to a maximum power of 15W. While the COLM power supply is adequate for powering IP phones, it cannot match the output capabilities of the JUSTOP, making it less suitable for high-performance computing needs.

Safety Features

Safety features are paramount in ensuring that power supplies operate without risk to connected devices. The JUSTOP Black ATX PSU comes equipped with several protective measures, including over voltage protection, over power protection, short circuit protection, and thermal overload cut-off protection. These features make it a reliable choice for users concerned about electrical safety. The 5V Power Supply for Polycom phones, while simpler in design, does not specify any advanced safety features. For users prioritising safety and reliability in their power supply, the JUSTOP stands out significantly.

Price Comparison

Pricing plays a pivotal role in the decision-making process. The JUSTOP Black ATX 500W PSU is priced at £22.50, which is reasonable given its capacity and features tailored for desktop PCs. In contrast, the 5V Power Supply for Polycom devices is more affordable at £11.98, making it an attractive option for those with budget constraints or specific needs. While the lower price of the COLM power supply could appeal to users seeking a quick, cost-effective solution for their VoIP phones, the value offered by the JUSTOP in terms of power and features is noteworthy.

Customer Support and Warranty

Customer support and warranty can significantly influence the purchasing decision. The JUSTOP Black ATX PSU offers a one-year manufacturer warranty, providing peace of mind for users concerned about product reliability. This warranty reflects confidence in the product's durability and performance. The 5V Power Supply for Polycom devices does not mention a warranty, which may raise concerns for potential buyers about long-term reliability. For those who value after-sales support and warranty coverage, the JUSTOP PSU is likely the preferable option.

Which should you buy?

Ultimately, the choice between the JUSTOP Black ATX 500W PSU and the 5V Power Supply for Polycom phones boils down to your specific needs. If you require a powerful, versatile power supply for a desktop PC, the JUSTOP is the clear winner with its 500W output, robust safety features, and compatibility with multiple components. However, if you are looking for an affordable and compact solution specifically for VoIP phones, the COLM power supply offers a cost-effective choice at £11.98. Consider your requirements carefully to ensure you select the power supply that best fits your needs.

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JUSTOP Black ATX 500W PSU vs 5V Power Supply for Polycom VVX 150 250 350 450 2200-48872-001 1465-48871-001 | versusfinder