30W Adjustable Universal Power Adapter 3V–12V USB | US EU UK AU
30W Adjustable Universal Power Adapter 3V–12V USB | US EU UK AU
30W Adjustable Universal Power Adapter with USB – Multi-Voltage & Multi-Plug
Power virtually any low-voltage device with this versatile 30W Adjustable Universal Power Adapter. Featuring selectable output voltages of 3V, 4.5V, 5V, 6V, 7.5V, 9V, and 12V, plus a dedicated USB 2.1A charging port, this all-in-one switch-mode power supply is the last adapter you'll ever need. Compatible with US, EU, UK, and AU wall outlets, it's perfect for home, office, or travel use.
Made in Mainland China.
Key Features
- 7 Selectable Voltage Outputs: Dial in exactly the right voltage — 3V, 4.5V, 5V, 6V, 7.5V, 9V, or 12V — for safe, precise device powering.
- 30W Max Output Power: Handles a wide range of household electronics, small appliances, and gadgets with ease.
- USB 2.1A Charging Port: Simultaneously charge a smartphone, tablet, or other USB-powered device while powering your main device via DC output.
- Universal Plug Compatibility: Includes US, EU, UK, and AU interchangeable plug heads — ready for worldwide use straight out of the box.
- Intelligent Charging Technology: Built-in smart regulation circuitry delivers stable, consistent power output to protect your devices.
- Switch-Mode Design: Lightweight and energy-efficient compared to traditional transformer-based adapters.
- Wide Compatibility: Ideal for routers, LED strips, radios, clocks, small fans, DC-powered electronics, and more.
Specifications
| Output Voltages | 3V / 4.5V / 5V / 6V / 7.5V / 9V / 12V (selectable) |
| Max Output Power | 30W (≤37.5W peak) |
| USB Output | 5V / 2.1A |
| Plug Types | US / EU / UK / AU |
| Power Source | AC Mains (DC output) |
| Quick Charge | No |
| Display | No |
| Origin | Mainland China |
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Learn more: ENERGY STAR product efficiency guidance
Frequently Asked Questions
Q: What devices is this adjustable universal power adapter compatible with?
A: This 30W adjustable power adapter is compatible with a wide range of low-voltage DC-powered devices including routers, LED strips, radios, clocks, small desk fans, electronic toys, and other gadgets that require between 3V and 12V DC. Always check your device's voltage requirements before selecting an output.
Q: Can I use this adapter in different countries?
A: Yes! The adapter comes with four interchangeable plug heads — US, EU, UK, and AU — making it suitable for use in most countries around the world. Simply swap the plug head to match your local wall socket.
Q: Can I charge a phone and power a device at the same time?
A: Absolutely. The built-in USB 2.1A port lets you charge a smartphone or tablet simultaneously while the DC output powers your main device, as long as the combined load stays within the 30W output capacity.
Q: Is this a switch-mode power supply or a transformer-based one?
A: This is a switch-mode power supply (SMPS), which makes it significantly lighter and more energy-efficient than traditional transformer-based adapters — ideal for travel and everyday use.