Wall charger Aukey PA-B4 2x USB White GaN – compact USB power adapter with dual USB ports

The Aukey PA-B4 2x USB White GaN is a compact wall charger with two USB ports, designed to charge phones, tablets and other USB-powered devices from a single mains outlet. Built using GaN (gallium nitride) technology, the adapter delivers reliable power in a smaller housing compared to traditional silicon chargers. Its white finish and low-profile shape suit both home and travel use where space and portability matter.

Advantages

The GaN design provides higher efficiency and reduced heat generation, allowing the Aukey PA-B4 to be smaller while maintaining effective power delivery. Dual USB ports enable simultaneous charging of two devices without occupying multiple outlets. The adapter’s compact dimensions and lightweight construction make it easy to carry in a bag or pocket for commuting and short trips. The simple white casing blends with most interiors and charging setups.

Suitable for

• Charging smartphones and feature phones
• Charging tablets and e-readers
• Powering Bluetooth headsets, portable speakers and wearable devices
• Travel and daily commuting where a compact dual-port charger is required

Key specifications

• Number of output ports: 2 USB ports
• Technology: GaN (gallium nitride) for reduced size and heat
• Color: white
• Form factor: compact wall-mounted power adapter
• Intended use: mains-powered charging for portable USB devices

How to use

Insert the Aukey PA-B4 into a suitable mains socket and connect devices using standard USB charging cables. The charger supports simultaneous charging of two devices; connect one device to each port and verify charging starts on the device screens or status indicators. Avoid using excessively long or damaged cables, and ensure the wall socket is properly installed and earthed if required by local regulations.

Recommendations

Use manufacturer-recommended cables and check device charging indicators. Allow space around the adapter for ventilation, avoid covering it with fabrics while in use, and disconnect the charger from the mains when not in use for extended periods.