---
product_id: 222351374
title: "SHNITPWR 3V ~ 24V 3A 72W Power Supply Adjustable DC 3V 5V 6V 9V 12V 15V 16V 18V 19V 20V 24V Variable Universal AC/DC Adapter 100V-240V AC to DC Converter with 14 Tips 5.5x2.5mm 4.0x1.7mm 3.5x1.35mm"
brand: "shnitpwr"
price: "145.94 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Shnitpwr"
url: https://www.desertcart.tn/products/222351374-shnitpwr-3v-24v-3a-72w-power-supply-adjustable-dc-3v
store_origin: TN
region: Tunisia
---

# 72W max power output 3V-24V adjustable voltage range 14 versatile connector tips SHNITPWR 3V ~ 24V 3A 72W Power Supply Adjustable DC 3V 5V 6V 9V 12V 15V 16V 18V 19V 20V 24V Variable Universal AC/DC Adapter 100V-240V AC to DC Converter with 14 Tips 5.5x2.5mm 4.0x1.7mm 3.5x1.35mm

**Brand:** shnitpwr
**Price:** 145.94 DT
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your tech life with precision and versatility!

## Quick Answers

- **What is this?** SHNITPWR 3V ~ 24V 3A 72W Power Supply Adjustable DC 3V 5V 6V 9V 12V 15V 16V 18V 19V 20V 24V Variable Universal AC/DC Adapter 100V-240V AC to DC Converter with 14 Tips 5.5x2.5mm 4.0x1.7mm 3.5x1.35mm by shnitpwr
- **How much does it cost?** 145.94 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/222351374-shnitpwr-3v-24v-3a-72w-power-supply-adjustable-dc-3v)

## Best For

- shnitpwr enthusiasts

## Why This Product

- Trusted shnitpwr brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Safety Features:** Built-in over-voltage, over-current, over-temperature, and short-circuit protections for worry-free operation.
- • **Multipurpose Powerhouse:** Perfect for DIY projects, smart home devices, LED strips, routers, and more—your all-in-one power solution.
- • **Universal Compatibility:** Includes 14 frequently used tips plus polarity converter cable—one power supply for all your DC gadgets.
- • **Enhanced User Convenience:** Long 6ft power cable and off switch let you power down safely without unplugging.
- • **Precision Voltage Control:** Smooth knob adjustment with digital LCD display ensures exact voltage settings to protect your devices.

## Overview

The SHNITPWR 72W adjustable power supply delivers 3A current with a wide 3V to 24V DC output range, featuring 14 connector tips and a polarity converter for universal device compatibility. Its digital display and smooth voltage knob provide precise control, while multiple built-in safety protections ensure reliable, safe operation. Ideal for powering a broad spectrum of electronics, this power supply is a versatile, professional-grade solution for home, office, and DIY projects.

## Description

Product description Parameter Input: AC 100V~240V 50/60Hz Output Voltage: DC 3.5V~24V Adjustable Output Current/Wattage: 3A, 72W Max Output DC connector:5.5mm x 2.5mm (inside"+", outside"-") Reverse polarity converter: 5.5mm x 2.1mm 14 Tips Size: 6.5x4.4mm+Pin, 5.5x2.1mm, 5.5x3.0mm+Pin, 5.0x2.5mm, 6.3x3.0mm, 5.5x1.7mm, 4.8x1.7mm, 4.0x1.7mm, 3.5x1.35mm, 3.0x1.1mm, 2.5x0.7mm, Micro-USB, Type-C and DC terminal connector. Power cable length: 7.7ft / 236cm Safety Compliance: FCC / CE/ RoHS Working Temperature: -10~40℃ Weight: 0.66 lb / 300g Package included 1x 72W Universal Power Supply Adapter; 14x DC Tips; 1x Reverse polarity converter cable Attention The power cord between power brick and DC plug will lead to 0.4V~0.6V voltage drop, so we designed the screen displayed voltage was 3.5V~24V. Only in this way can your device really get 3V~24V voltage. This is the reason why we advertise the power supply's voltage range is 3V~24V, not 3.5V~24V. Important Note Please choose correct power supply before place the order. Wrong power supply may damage your equipment! This product is an AC to DC adapter, not charger. Please don’t use it to charge devices with batteries. Please ensure your device falls within the following operating parameters 1.Check Voltage Please check the parameter label on your device and verify its operating voltage. It should be 3.5V~24V DC, and must not fall below 3.5V DC or exceed 24V DC. Otherwise, your device may fail to operate or become damaged. 2. Check Current Check the max current your device will draw. It should be equal to or less than 3A, such as 0.5A, 1A, 1.5A, 2A, 2.5A, 3A. Otherwise, your device won't work well and the power supply will be damaged very soon. 3. Check power input port Check the power input port of your device.Its outer diameter should be 5.5mm; inner core diameter should 2.5mm or 2.1mm. Inner core polarity should be "+", exterior polarity should be "-". Otherwise, the power supply can't be plugged into your device. (Please refer to the main product image for specific details.) 4. The 10.5cm short black power cord is a reverse polarity converter, not extension wire. It is used to reverse the original polarity of the power supply output port ( reverse the internal positive pole to negative , and the external negative pole to positive). Please confirm the polarity of your devices’ power port before use. If the positive and negative poles are reversed, it will cause short circuit and damage your device. Is this 3.5~24V 72W universal power supply (PS) compatible with your device? 1. Check Voltage Please find the spec label of your device and check the working voltage. It should be among 3.5V~24V DC, not lower than 3.5V or higher than 24V DC. Otherwise, your device will not work or be damaged. Check the max current your device will draw. It should be equal to or less than 3A, such as 1A, 1.5A, 2A, 2.5A, 3A. Otherwise, your device won’t work well and the PS will be damaged very soon. 3. Check Plugs Check the power input port of your device. The PS is equipped with 14 pcs frequently-used DC tips. Please confirm wether it fits for your device before buy. If you can 't confirm, please measure it with a ruler. 4. Check Original PS If you have a original power supply for reference, their output voltage, plug size, polarity should be the same . If our PS’s current is equal to or higher than original one’s, then our PS will work with your device.

Review: Lots of extras you get with this power supply but even without them it's a great product - It does what you want and does it very well, but also gives you so much more for the money you pay. There are plenty of advantages over your standard Wall Wort type Power adapter, among which are: You get a digital display that shows the DC voltage output value, which is also what you use to set the desired output voltage level. The potentiometer is very smooth and not too tight, such that it's easy to achieve the actual voltage value you need. The output voltage is accurate to what is displayed on the display of the power adapter, and also it's easier to use than many of the standard AC/DC power adapters in that you have a long cord that gives you a nice tight plug to use to plug into the outlet verses several other Power Adapters on the market what contain the transformer within the plug that you plug into the outlet source. The vast and large selection of adapters that are included with the power adapter also mean that this is a multipurpose Power Adapter that you can use with several different devices requiring many different plugs. This means you only need one adapter rather than one for each device, or you have one adapter that works across several other devices. As long as you specify the correct amperage sufficient to operate all your different DC devices, you only have to make one purchase rather than many different ones.
Review: It does all the things! - I've bought 4 of these for use on work projects and for myself or others who have a bunch of DC barrel-plug devices sitting around for years with missing power adapters. They've always been reliable and I've never found something with a barrel plug that this couldn't match. The included bare-wire terminal helps with ad-hoc electronics projects, the polarity reverser covers that base, and the USB plugs are a handy addition. Great purchase!

## Features

- 𝐈𝐧𝐩𝐮𝐭 𝐚𝐧𝐝 𝐎𝐮𝐭𝐩𝐮𝐭: Input: AC 100~240V, 50/60Hz ; Output: DC 3~24V Adjustable, Max 3A 72W ; It can supply with any voltage between 3~24V,such as 3V 4V 4.5V 5V 5.5V 6V 9V 12V 14V 15V 19V 20V 24V, etc and any amp less than 3A, such as 300mA, 500mA,1A, 1.5A, 2A, 2.5A, 3A. LCD display will show the output voltage, in case that wrong voltage regulation damage your device.
- 𝐔𝐩𝐠𝐫𝐚𝐝𝐞𝐝 𝐕𝐞𝐫𝐬𝐢𝐨𝐧 𝐏𝐨𝐰𝐞𝐫 𝐒𝐮𝐩𝐩𝐥𝐲: Based on hundreds of users feedback, we have made the following improvements: 1. The knob can be adjusted more evenly, and it can reach 13V ~ 14V by rotating 50%. 2. Increase the off gear to turn off the power without pulling the plug. 3.Add a polarity converter cable, which make it compatible with more devices，doubles its range of application.
- 𝟏𝟒𝐩𝐜𝐬 𝐅𝐫𝐞𝐪𝐮𝐞𝐧𝐭𝐥𝐲 𝐔𝐬𝐞𝐝 𝐓𝐢𝐩𝐬: It comes with an original 5.5x2.5mm tip and 14pcs frequently used tips: 6.5x4.4mm+Pin, 5.5x2.1mm, 5.5x3.0mm+Pin, 5.0x2.5mm, 6.3x3.0mm, 5.5x1.7mm, 4.8x1.7mm, 4.0x1.7mm, 3.5x1.35mm, 3.0x1.1mm, 2.5x0.7mm, Micro-USB, Type-C and DC terminal connector. Can be applied to almost all commonly used electronic devices. You can screw wires onto it easily, perfect for DIY projects.
- 𝐖𝐢𝐝𝐞 𝐑𝐚𝐧𝐠𝐞 𝐨𝐟 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬: The 72W all-in-one multipurpose AC/DC adapter fit for many 3~24V small household electronics such as LED strips, under-cabinet light, TV Box, smart speaks, wireless routers, essential oil diffuser humidifier, USB fan, Wifi camera, USB Hub, hard disk box, DC motor, DC pump, digital photo frame, DVR NVR surveillance system etc.For indoor use only.
- 𝐒𝐚𝐟𝐞𝐭𝐲 𝐏𝐫𝐨𝐭𝐞𝐜𝐭𝐢𝐨𝐧 𝐒𝐲𝐬𝐭𝐞𝐦𝐬: Built-in multiple safety protection systems. Automatic over voltage cut-off, over current cut-off, over temperature cut-off, short circuit cut-off. We focus on producing premium quality and safety power adapters. No noise, no spontaneous combustion, no explosion, no fire hazard, safe to use. 6ft long power cable makes it convenient to use.
- 𝐊𝐢𝐧𝐝𝐥𝐲 𝐍𝐨𝐭𝐞 𝐚𝐧𝐝 𝐖𝐨𝐫𝐫𝐲-𝐟𝐫𝐞𝐞 𝐒𝐡𝐨𝐩𝐩𝐢𝐧𝐠: Please choose correct voltage before plug it to your device. Wrong voltage may damage your device. We recommend to use less than 80% of the full load. We always stand behind our products. If there is any issue, please feel free to contact us. We have 30 days money back guarantee, 12 months exchange.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08BL4QMGM |
| Amperage | 3 Amps |
| Best Sellers Rank | #7,937 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #39 in Power Converters |
| Brand | SHNITPWR |
| Built-In Media | 1x 72W Universal Power Supply Adapter, 14x DC Tips, 1x Reverse polarity converter cable |
| Color | Black |
| Connector Type | Micro USB, USB |
| Connector Type Used on Cable | Micro USB, USB |
| Customer Reviews | 4.4 out of 5 stars 3,088 Reviews |
| Enclosure Material | Metal, Plastic |
| Form Factor | Wall-mounted, not portable |
| Input Voltage | 240 Volts |
| Item Weight | 300 Grams |
| Manufacturer | SHNITPWR |
| Material | Metal, Plastic |
| Maximum Power | 72 Watts |
| Mfr Part Number | eggreh-001 |
| Model Number | SNT-0324-72 |
| Output Current | 3 Amps |
| Output Voltage | 24 Volts |
| Output Wattage | 72 Watts |
| Specification Met | CCC, CE, FCC, RoHS |
| UPC | 619191115082 619191115303 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 year |

## Product Details

- **Brand:** SHNITPWR
- **Color:** Black
- **Connector Type:** Micro USB, USB
- **Item Weight:** 300 Grams
- **Material:** Metal, Plastic

## Images

![SHNITPWR 3V ~ 24V 3A 72W Power Supply Adjustable DC 3V 5V 6V 9V 12V 15V 16V 18V 19V 20V 24V Variable Universal AC/DC Adapter 100V-240V AC to DC Converter with 14 Tips 5.5x2.5mm 4.0x1.7mm 3.5x1.35mm - Image 1](https://m.media-amazon.com/images/I/61KZjT6RtDL.jpg)
![SHNITPWR 3V ~ 24V 3A 72W Power Supply Adjustable DC 3V 5V 6V 9V 12V 15V 16V 18V 19V 20V 24V Variable Universal AC/DC Adapter 100V-240V AC to DC Converter with 14 Tips 5.5x2.5mm 4.0x1.7mm 3.5x1.35mm - Image 2](https://m.media-amazon.com/images/I/611UuLDB+ZL.jpg)
![SHNITPWR 3V ~ 24V 3A 72W Power Supply Adjustable DC 3V 5V 6V 9V 12V 15V 16V 18V 19V 20V 24V Variable Universal AC/DC Adapter 100V-240V AC to DC Converter with 14 Tips 5.5x2.5mm 4.0x1.7mm 3.5x1.35mm - Image 3](https://m.media-amazon.com/images/I/61lyZHUShUL.jpg)
![SHNITPWR 3V ~ 24V 3A 72W Power Supply Adjustable DC 3V 5V 6V 9V 12V 15V 16V 18V 19V 20V 24V Variable Universal AC/DC Adapter 100V-240V AC to DC Converter with 14 Tips 5.5x2.5mm 4.0x1.7mm 3.5x1.35mm - Image 4](https://m.media-amazon.com/images/I/717wOXpAO4L.jpg)
![SHNITPWR 3V ~ 24V 3A 72W Power Supply Adjustable DC 3V 5V 6V 9V 12V 15V 16V 18V 19V 20V 24V Variable Universal AC/DC Adapter 100V-240V AC to DC Converter with 14 Tips 5.5x2.5mm 4.0x1.7mm 3.5x1.35mm - Image 5](https://m.media-amazon.com/images/I/619JZwAb6SL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: It stopped working, when a device is plugged the digits start blinking. What is happening?**
A: Probably a fuse on the load side.

**Q: Do you think I can use it , to charge a motorcycle battery and or “ trickle charge “ ( maintain) a car battery?**
A: You would need some electrical experience and battery charger know how and wire in an amp meter to insure volts times amps does not ever exceed the safe rating of this device.  Also need to insure the voltage does not exceed safe voltage to charge a battery at. If you know how, I think it could work for lead-acid batteries but probably not other rechargeable batteries. I recommend instead to use a dedicated battery charger designed for what you are doing.

**Q: Will this accept the adapters with a 5.5mm x 2.1mm dimensions? I ask because the images show the plug to be 5.5mm x 2.5mm and 2.1 seems to be standard**
A: The product description says,
Output DC connector:5.5mm x 2.5mm (inside"+", outside"-")
Reverse polarity converter: 5.5mm x 2.1mm

**Q: Will this work and is it safe for a device with 120vac 60hz 5w input and 16v 100ma dc output?**
A: Hi,
The 3V~24V 3A power supply just power any device which its input voltage is between 3V and 24V, and input current is equal or less than 3A.Thanks.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Lots of extras you get with this power supply but even without them it's a great product
*by G***K on June 5, 2024*

It does what you want and does it very well, but also gives you so much more for the money you pay. There are plenty of advantages over your standard Wall Wort type Power adapter, among which are: You get a digital display that shows the DC voltage output value, which is also what you use to set the desired output voltage level. The potentiometer is very smooth and not too tight, such that it's easy to achieve the actual voltage value you need. The output voltage is accurate to what is displayed on the display of the power adapter, and also it's easier to use than many of the standard AC/DC power adapters in that you have a long cord that gives you a nice tight plug to use to plug into the outlet verses several other Power Adapters on the market what contain the transformer within the plug that you plug into the outlet source. The vast and large selection of adapters that are included with the power adapter also mean that this is a multipurpose Power Adapter that you can use with several different devices requiring many different plugs. This means you only need one adapter rather than one for each device, or you have one adapter that works across several other devices. As long as you specify the correct amperage sufficient to operate all your different DC devices, you only have to make one purchase rather than many different ones.

### ⭐⭐⭐⭐⭐ It does all the things!
*by T***D on March 22, 2026*

I've bought 4 of these for use on work projects and for myself or others who have a bunch of DC barrel-plug devices sitting around for years with missing power adapters. They've always been reliable and I've never found something with a barrel plug that this couldn't match. The included bare-wire terminal helps with ad-hoc electronics projects, the polarity reverser covers that base, and the USB plugs are a handy addition. Great purchase!

### ⭐⭐⭐⭐⭐ Works on my Sunlu S1 filament dryer
*by B***. on April 27, 2026*

Works as advertised. Unlike other reviewers, I did not have any trouble setting the adapter to different voltages. The knob is sensitive, but you do have to turn it slowly.

## Frequently Bought Together

- SHNITPWR 3V ~ 24V 3A 72W Power Supply Adjustable DC 3V 5V 6V 9V 12V 15V 16V 18V 19V 20V 24V Variable Universal AC/DC Adapter 100V-240V AC to DC Converter with 14 Tips 5.5x2.5mm 4.0x1.7mm 3.5x1.35mm
- REXQualis Electronics Component Fun Kit w/Power Supply Module, Jumper Wire, 830 tie-Points Breadboard, Precision Potentiometer,Resistor Compatible with Arduino, Raspberry Pi, STM32
- NANKADF DC Power Supply, Bench Power Supply with Memory Storage & Recall，Variable Power Suppy with Encoder Adjustment Knob, 5V/3.6A USB Quick-Charge & OCP Short Circuit Alarm (0-30v 0-5a)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-05-30*