Gigabyte P750BS 80 Plus Bronze Non Modular 750w Power Supply Unit vs 5V Power Supply for Polycom VVX 150 250 350 450 2200-48872-001 1465-48871-001

Power Output and Suitability

The Gigabyte P750BS offers a much higher power output of 750 watts compared to the 15-watt maximum output of the 5V Power Supply for Polycom VVX phones. This makes the Gigabyte P750BS suitable for powering high-performance desktop computers and demanding systems, while the 5V Power Supply is specifically designed for low-power VOIP IP phones and related devices.

With 750W available on a single +12V rail, the Gigabyte P750BS is designed to deliver stable and consistent energy to complex systems. In contrast, the 5V Power Supply provides a maximum output of only 15W at 5 volts and 3 amps, tailored for specific Polycom, Cisco, and Yealink IP phones. Therefore, the choice largely depends on the device type: the Gigabyte is a desktop PSU, whereas the COLM unit is a niche power adapter for IP telephony equipment.

Certification and Efficiency

Efficiency certification is a key factor in power supplies. The Gigabyte P750BS is 80 PLUS Bronze certified at 230V EU, indicating it meets a recognised standard for energy efficiency. This means it can deliver a reliable and efficient power supply with reduced energy loss. The 5V Power Supply does not list any certification, which is common for specialised low-wattage adapters.

The Bronze certification ensures the Gigabyte unit runs more economically and potentially cooler, optimising power consumption for desktop use. The COLM 5V adapter’s efficiency is not quantified, but its design focuses on compatibility and stable output for IP phones rather than energy efficiency credentials.

Build and Design Features

The Gigabyte P750BS features a 120mm silent fluid dynamic bearing fan, soft-textured embossed cables, and a non-modular design. These elements combine for quiet operation and durable cable management, which are important for a system PSU handling significant loads. The single +12V rail design further simplifies power delivery and stability.

The 5V Power Supply’s design centres on functionality for IP phones, with a long 6.6 ft (about 200cm) cable to accommodate various setups. It is a compact power adapter with worldwide input voltage compatibility (AC 100-240V 50/60Hz), but it does not include advanced cooling or cable management features typical of desktop PSUs. Its focus is reliable, straightforward power delivery to specific devices rather than sophisticated design elements.

Protection Features

Protection mechanisms enhance reliability and safety. The Gigabyte P750BS includes multiple protections: Over Voltage Protection (OVP), Over Power Protection (OPP), Short Circuit Protection (SCP), Under Voltage Protection (UVP), Over Current Protection (OCP), and Over Temperature Protection (OTP). These ensure the PSU can handle faults without damaging connected components or itself.

The 5V Power Supply does not list specific protection features, reflecting its simpler application for powering IP phones. Its protection likely meets basic safety standards for low-voltage adapters, but it lacks the comprehensive safeguards found in the Gigabyte PSU. This makes the Gigabyte unit more suitable for mission-critical or high-load environments requiring robust protection.

Compatibility and Application

Compatibility is the primary distinction. The Gigabyte P750BS is a general-purpose desktop power supply unit, compatible with any standard ATX PC build needing 750W at 230V EU. It is designed to power high-performance systems with multiple components.

Conversely, the 5V Power Supply is explicitly compatible with Polycom VOIP IP Phones VVX 150, 250, 350, EM50 Expansion Module, OBi2182, and a wide range of Cisco and Yealink IP phone models. It is not compatible with other IP phone models outside this list. This makes it ideal for users needing a replacement or backup power adapter for those specific telephony devices but unsuitable for any other application.

Price Comparison

There is a significant price difference: the Gigabyte P750BS costs £57.55, whereas the 5V Power Supply for Polycom phones is priced at £11.98. This reflects their vastly different target uses and capabilities.

The higher cost of the Gigabyte PSU is justified by its 750W power output, efficiency certification, advanced protection features, and build quality for desktop PCs. The 5V adapter’s lower price corresponds to its specialised and limited application as a power source for IP phones, with simpler design and lower power requirements.

Overall Use Case and Target Audience

The Gigabyte P750BS is aimed at PC builders and users who require a reliable, efficient, and powerful power supply for desktop computers. Its 750W output, 80 PLUS Bronze efficiency, and comprehensive protections make it suitable for gaming rigs, workstations, or general high-performance systems.

The 5V Power Supply is targeted at business or home users who need a compatible power adapter for specific Polycom, Cisco, or Yealink VOIP IP phones. It caters to a niche market focused on telephony equipment, where power demands are low but stable and compatible power delivery is critical.

Which should you buy?

Your choice depends entirely on your needs. If you require a desktop power supply for a high-performance PC, the Gigabyte P750BS at £57.55 is the clear option, offering 750W output, efficiency certification, and robust protections. However, if you need a power adapter specifically for Polycom VVX series or compatible Cisco and Yealink IP phones, the 5V Power Supply at £11.98 is the practical and economical choice.

In summary, the Gigabyte P750BS is a versatile, high-wattage PSU for computing use, while the 5V Power Supply is a dedicated, low-wattage adapter for IP telephony devices. Selecting the right product hinges on whether you need a powerful desktop PSU or a specialised phone power supply.