Description

Price: $13.99
(as of Jan 25, 2026 11:17:11 UTC – Details)

Product description

Parameter :

Item: 30W Universal Power Adapter

Input: AC100V/220V 50/60Hz

Output Voltage: DC 3V-12V

Output Current: 2.5A Max

Output Wattage: 30W

Female connector size: 5.5mmX2.5mm(inside”+”, outside”-“)

Working temperature: -10 to 50 degree Celsius

Storage temperature: -20 to 85 degree Celsius

How to use Reserve Polarity Converter Cable？

Checking whether your device is（Inner:”+”, Outer:”-” ）or（Inner:”-”, Outer:”+” ）

If Inner:”+”, Outer:”-” , it is not necessary to connect reserve polarity cable;

If Inner:”-”, Outer:”+” , please connect the reserve polarity cable when connecting the power supply.

Please Note:

1. Indoor use only.(Not waterproof)

2. DC connector polarity: inside Positive(+), outside Negative(-).

If your device requires output power with reverse polarity, please remember to use the reverse polarity converter cable that we have equipped.

3. Our normal power supply voltage range is 3V~12V. The power cord between the power brick and the DC plug will cause a voltage drop of 0.4V ~ 0.6V, so the screen display voltage is 3.5V~12.5V. In other words, if the voltage required by the equipment you use is 6V, please adjust the screen display to 6.4V~6.6V.

Package included: 1 x 30W Power Adapter 1 x Reverse Polarity Converter 14x DC adapter plugs

Universal DC port

5.5mm X 2.5mm universal DC port,match with variety of electronic products.

Copper nickel interface

Using pure copper material with strong conductivity, stable output and ensuring higher safety.

USB port

There are a USB port and USB plug included, so this 30W AC Adapter can also function as an adaptor to turn any USB cable into a adapter.

14x DC adapter plugs

Equipped with multiple connector to meet your various power needs. Working for Echo Dot, Keyboard, Video, Game USB HUB, Kindle Fire Tablet, Phone, CCTV Camera, Raspberry PI, LED Strip Light, Baby monitor, TV Box, Router, Wifi Receiver, Speaker, ADSL Cat, Console, Serato DJ Controller, Mini Fan, and more 5V electronics devices.

Reverse Polarity Converter

We specially added a reverse polarity converter cable, for electronic devices that needs center output negative power supply.

Reserve polarity cable expands the application of power supply.

3-12V Adjustable Voltage

Supply with any voltage between 3~12V, all-in-one multipurpose AC/DC adapter widely used for many 3V~12V 2.5A small household electronics.

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Price

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Max Output Amps
6A 2A 3A 3A 5A

Output Volts
12V 3V~12V 3V~12V 3V~24V 3V~24V

Output Watts
72W 30W 36W 72W 120W

Adjustable Power Supply: Input: AC 100-240V, 50/60Hz. Output: DC 3V-12V Adjustable, Max 30W. It can supply power to any device requiring voltage between 3V-12V and current less than 2.5A, such as 3V 4V 4.5V 5V 6V 9V 12V 2A 1.5A 1A 1000mA 800mA.If the current drawn exceeds 2.5A, the power supply will be damaged soon. Never overload!
30W Multifunctional Adapter: 30W 3V-12V universal power supply is equipped with 14 interchangeable plugs, suitable for 90% AC/DC household appliances, such as 3V to 12V household appliances, audio amplifier, wireless router, surveillance camera, car air purifier, 3D printer, water pumps, electric drills, electric fans, electric fans, motors, Android TV Box, ADSL Cat, 5V 12V LED strips Lights
AC/DC Universal Charger: It comes with an original 5.5×2.5mm tip and equipped with 14 adapter plugs, 5.5×2.1mm, 5.5×1.7mm, 5.0X2.5mm, 5.5×3.0mm+Pin, 6.5X4.4mm+Pin, 6.3×3.0mm, 4.0X1.7mm, 4.8×1.7mm, 3.5X1.35mm, 3.0×1.1mm, 2.5X0.7mm, DC terminal connector, Micro-USB, Type-C. The different size tips fit for various electric appliances well. We specially added a reverse polarity converter cable, for electronic devices that needs center output negative power supply
DC Power Supply 30W: Built-in intelligent protection system, with over-current, over-voltage, short-circuit, stability and other safety protection technologies to protect your equipment. The power supply has sufficient power and has undergone aging tests, using high-quality copper core wire, not easy to break, effectively extending the life of the power supply
Multi Voltage Power Adapter Included: 1X 3V-12V 30W AC Adapter, 14X DC Plugs. 1X Reverse Polarity Converter. Please set the right voltage before power your device