iUniker GaN PD 27W 5.1V 5A 27W PD Power Supply USB-C for Raspberry Pi 5 vs 5V Power Supply for Polycom VVX 150 250 350 450 2200-48872-001 1465-48871-001
Updated August 2026 — The iUniker power supply is superior for Raspberry Pi devices, while the COLM is a budget-friendly option for Polycom phones.
The iUniker power supply is superior for Raspberry Pi devices, while the COLM is a budget-friendly option for Polycom phones.
Why iUniker GaN PD 27W 5.1V 5A 27W PD Power Supply USB-C for Raspberry Pi 5 is better
Power Output
iUniker offers up to 27W compared to COLM's 15W.
Technology
iUniker uses advanced GaN technology for efficiency.
Protection Features
iUniker includes over-voltage and short circuit protection.
Why 5V Power Supply for Polycom VVX 150 250 350 450 2200-48872-001 1465-48871-001 is better
Price
COLM is cheaper at £11.98 compared to iUniker's £13.79.
Cable Length
COLM has a longer 6.6-foot cable for better usability.
Compatibility
COLM supports a wide range of VoIP devices.
Overall score
Specifications
| Spec | iUniker GaN PD 27W 5.1V 5A 27W PD Power Supply USB-C for Raspberry Pi 5 | 5V Power Supply for Polycom VVX 150 250 350 450 2200-48872-001 1465-48871-001 |
|---|---|---|
| Brand | iUniker | COLM |
| Current | 5A | 3A |
| Input | 100-240V | 100-240V |
| Protection | Yes | No |
| Compatibility | Raspberry Pi | Polycom VoIP |
Dimension comparison
Overview of the Products
In this comparison, we will examine the iUniker GaN PD 27W 5.1V 5A Power Supply and the COLM 5V Power Supply for Polycom devices. The iUniker model is priced at £13.79, while the COLM power supply is slightly more affordable at £11.98. Both products serve specific purposes, with the iUniker designed for Raspberry Pi devices and the COLM primarily for Polycom VoIP phones.
Design and Build Quality
Both power supplies are designed with functionality in mind but cater to different devices. The iUniker power supply employs GaN technology, allowing for a more compact design without compromising power output. This technology enables it to provide a variety of outputs, including 5.1V/5A and other voltages up to 15V, all in a small form factor. In contrast, the COLM power supply is a standard design for VoIP applications, offering a straightforward solution with a 6.6-foot cable for flexibility. The simplicity of the COLM design is effective for its intended use, making it user-friendly for IP phone setups.
Compatibility
Compatibility is a crucial aspect of both products. The iUniker power supply is specifically compatible with the Raspberry Pi 5 models, including both the 4GB and 8GB versions. This makes it a tailored option for those who use Raspberry Pi devices for various applications. On the other hand, the COLM power supply boasts extensive compatibility with a range of Polycom VoIP phones, including models like the VVX 150, 250, 350, and more. It also supports other brands like Cisco and Yealink, making it a versatile choice for users with multiple VoIP devices.
Power Output and Efficiency
Power output differs significantly between these two products. The iUniker power supply can deliver up to 27W of power across various voltage options, including 5.1V/5A, 9V/3A, and 12V/2.25A, making it suitable for devices that require higher power levels. The GaN technology further enhances its efficiency, allowing it to operate at lower temperatures. In comparison, the COLM power supply offers a fixed output of 5V at 3A, which equates to a maximum of 15W. While sufficient for its intended VoIP applications, it does not match the versatility and power range of the iUniker model.
Protection Features
When it comes to safety, the iUniker power supply includes several protective features such as over-voltage, over-current, and short circuit protection. This is particularly important when powering sensitive devices like the Raspberry Pi, as it helps prevent damage from electrical fluctuations. Conversely, the COLM power supply does not explicitly mention such protective features in its specifications. While it is designed for reliability, the lack of detailed protection information could be a consideration for users prioritising safety and device longevity.
Cable Length and Usability
Usability is an essential factor in any power supply. The iUniker power supply comes with a 120mm (approximately 4.7 inches) cable, which may be limiting for users who require longer distances between their power source and device. In contrast, the COLM power supply offers a generous 6.6-foot cable, providing more flexibility in positioning VoIP phones in various environments. This longer cable length can be advantageous in office settings where desk arrangements may require more reach from the power outlet.
Price Consideration
When comparing prices, the iUniker power supply is available for £13.79, while the COLM model is slightly cheaper at £11.98. Although the price difference is minimal, it does reflect the differing functionalities and target markets of the two products. The iUniker’s higher price can be justified by its advanced GaN technology and broader output options, making it suitable for more demanding applications. On the other hand, the COLM power supply's lower price point makes it an attractive option for users seeking a budget-friendly solution for their Polycom devices.
Which should you buy?
Choosing between the iUniker GaN PD 27W Power Supply and the COLM 5V Power Supply ultimately depends on your specific needs. If you are looking for a power supply specifically for Raspberry Pi devices with superior power output and efficiency, the iUniker model is the better choice despite its higher price. However, if you require a reliable and cost-effective power solution for Polycom VoIP phones, the COLM power supply offers excellent compatibility and usability at a lower price point. Consider your device requirements and budget to make the best decision for your situation.
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