30W Universal Power Adapter 3V–12V Adjustable + USB Port

30W Multifunctional Universal Power Adapter – Adjustable 3V to 12V with USB Port

Power virtually any household electronic device with this versatile 30W Universal Power Adapter. Featuring a wide adjustable DC output range of 3V to 12V and a built-in 5V/2.1A USB port, this adapter is the all-in-one solution for routers, LED strips, webcams, security cameras, USB hubs, tablets, speakers, TV boxes, and countless DIY electronic projects.

Made in Mainland China.

Key Features

• 30W Output Power: AC input 100–240V, 0.25A, 50/60Hz; DC output adjustable at 3V / 4.5V / 5V / 6V / 7.5V / 9V / 12V (max 2.5A)
• Dual Output: DC barrel jack output PLUS a 5V/2.1A USB port for simultaneous charging
• 8 Interchangeable DC Tips: Includes a wide range of popular connector sizes to fit most household and electronic devices
• Built-In Smart Safety Protection: Integrated IC automatically shuts down in cases of overload, over-voltage, overheating, or short circuit — keeping your devices safe at all times
• Easy Voltage Selection: Simply use the included adjustment wrench to select the exact voltage your device requires
• US Plug Ready: Standard US plug design for immediate use with North American outlets
• Durable ABS Construction: Lightweight yet sturdy black ABS body built for everyday use

DC Tip Sizes Included

• 2.5 x 0.7mm
• 3.0 x 1.1mm
• 3.5 x 1.35mm
• 4.0 x 1.7mm
• 5.0 x 2.1mm
• 5.5 x 2.5mm
• Micro USB connector
• LED terminal connector

Specifications

What's in the Box

• 1 × Universal Power Adapter
• 8 × DC Connector Tips
• 1 × Voltage Adjustment Wrench

⚠ Important Note: Always select the correct voltage for your device before plugging in. Using the wrong voltage setting may damage your equipment. DC polarity is positive (+) inside and negative (−) outside — not compatible with all devices.

You Might Also Like

• 1PC Large Capacity Battery Storage Organizer Box – Vintage Beer Crate Style, Holds 30 AAA Batteries
• 1PC Mobile Data Cable Storage Box – Portable Winding Earphone & Charger Organizer

Learn more: ENERGY STAR product efficiency guidance

Frequently Asked Questions

Q: What devices is this 30W universal power adapter compatible with?

A: This adjustable power adapter is compatible with a wide range of household electronics including routers, LED strips, security cameras, webcams, USB hubs, tablets, TV boxes, speakers, and DIY electronic circuits. With 8 interchangeable DC tips and a voltage range of 3V to 12V, it suits most devices that accept a standard DC barrel connector. Always verify the required voltage and polarity of your device before use.

Q: How do I change the output voltage on this power adapter?

A: The package includes a voltage adjustment wrench. Simply use the wrench to turn the selector to your desired voltage setting (3V, 4.5V, 5V, 6V, 7.5V, 9V, or 12V) before connecting the adapter to your device. Make sure to select the correct voltage before plugging into a power outlet to avoid any risk of equipment damage.

Q: Can I charge a device via USB while also using the DC output at the same time?

A: Yes! This adapter features both a DC barrel output and a 5V/2.1A USB port, allowing you to power two devices simultaneously — one via the DC tip and one via the USB port — up to the adapter's total 30W maximum output capacity.

Q: What safety features does this universal power adapter have?

A: The adapter features a built-in smart IC protection system that automatically shuts the unit down in the event of overload, over-voltage, overheating, or short circuit conditions, helping protect both the adapter and your connected devices during use.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.