---
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: "R637"
currency: ZAR
in_stock: true
reviews_count: 10
category: "Shnitpwr"
url: https://www.desertcart.co.za/products/222351374-shnitpwr-3v-24v-3a-72w-power-supply-adjustable-dc-3v
store_origin: ZA
region: South Africa
---

# 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:** R637
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up smarter, not harder — the only adapter your tech tribe needs!

## 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?** R637 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/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:** Ideal for LED strips, routers, smart devices, DC motors, and more—your all-in-one solution for home and office tech.
- • **Universal Compatibility:** Includes 14 frequently used tips plus polarity converter cable—one power supply for all your gadgets.
- • **Enhanced User Convenience:** Long 6ft power cable and off switch let you power down without unplugging—perfect for busy workspaces.
- • **Precision Voltage Control:** Smooth knob with digital LCD ensures exact voltage from 3V to 24V, protecting your devices from damage.

## Overview

The SHNITPWR 72W adjustable power supply delivers precise DC voltage from 3V to 24V at up to 3A, featuring a clear LCD display and 14 versatile connector tips. Designed with advanced safety protections and user-friendly controls, it supports a wide range of household and professional electronics, making it the ultimate universal AC/DC adapter for millennial professionals seeking efficiency and reliability.

## Description

desertcart.com: 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 : Electronics

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: SHNITPWR 72W UNIVERSAL POWER CHARGER - This is great use around the house so many think needed charger with different plugs.This worked out great. Also can change the voltage to your need.

## 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 |
| Best Sellers Rank | #6,008 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #21 in Power Converters |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,008) |
| Date First Available | June 22, 2020 |
| Item Weight | 10.6 ounces |
| Item model number | SNT-0324-72 |
| Manufacturer | SHNITPWR |
| Package Dimensions | 8.19 x 2.8 x 2.64 inches |

## 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)

## 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.

### ⭐⭐⭐⭐⭐ SHNITPWR 72W UNIVERSAL POWER CHARGER
*by I***N on February 12, 2026*

This is great use around the house so many think needed charger with different plugs.This worked out great. Also can change the voltage to your need.

### ⭐⭐⭐⭐ Not too bad, but with some cautions
*by S***W on November 9, 2023*

I bought two of these units. Their price was a bit higher than other units, but I wanted to see how well (useful) the LED readout worked and the large tuning knob. I also like the higher output amperage (power) to price ratio. And they received good ratings from many amazon users. My short suggestion (tldr) is: I'm cautious by nature, so I can only cautiously recommend these power supplies to people that don't have a voltage meter for checking the voltage that you want especially if the device you're powering is voltage sensitive. I tried two of these units and got some results that varied a little between the two (detailed, below). I've documented my observed voltages and anomalies, below, if you want more background on this concern of mine. But if you know what you're doing, and have measuring equipment, I think these risks are lessened. I haven't decided if I will keep them yet or not. Having my own volt meter, the RED LED readout on these units is a little redundant for me, but could occasionally come in handy if I remember about how far each unit is off from readout voltages. I will ponder. If you want to know other observations and details I documented, read on: * These power supply units have a very basic instruction manual. But at least they have instructions! * The instruction manual covers the topic of output polarity and the use of the polarity reversing cable (not an extension cable). * It takes several seconds after turning on before the readout lights up. And several seconds after you turn it off to stop delivering power (with no load attached). This is not a bad thing. Just an observation. This is also briefly mentioned in the instruction manual. * It seemed to me like the higher the voltage, the harder it is (the touchier the knob) to dial in the exact voltage you want. I found that when I needed ultra fine control, I could place my thumb on top of the knob (instead of grabbing the knob with thumb and index finger on the sides of the know), and have a little more control over minuscule movements to dial in the exact voltage I wanted. In truth, being 0.1 volts off isn't going to hurt most devices too much. * Having the knob be so touchy and easy to turn means that it will have to be used in a location where it wont be accidentally bumped / moved by pets / people. * Of my two units, the first one tested much closer to actual, indicated voltages, whereas the second unit was delivering noticeably higher .2v-.3v than built-in LED was indicating. I've listed voltages I observed in both units below. It's interesting to me the differences in voltage outputs between the two units. Of course the instruction manual covers this situation by stating that you should use a voltmeter to double check actual output voltages if you need finely tuned (accurate) voltage. * Sometimes, after setting and then not touching the knob for a short period, the built-in indicated LED voltage would wander a little bit. +/- ~0.1v. That's not horrible. * I'm disappointed that neither unit could deliver an actual 3.00v. Some 3v devices, like LEDs, are sensitive enough that 3.3-3.4v is too high. I'll have to go with a different power source for these applications. * These units have a 3-prong grounded AC plug (good). * Housing is firm, rectangular (plastic) with mounting brackets on either long end of the power supply. * I was pleased at the amount of different tips that came with the unit, although I probably wont be using most of them as I have a specific purpose in mind, but I like having the variety available to me in case I did need them in the future. I kind of wish they sold a unit without tips to save a couple of bucks, but I realize that's probably not feasible for market demand. * Their method of reversing the polarity is quite unique (to me). I am used to the old method of a switch on the unit to reverse the polarity, but instead, they're supplying a short connector wire that you can install in between the device and your tip that will reverse the polarity at the tip. Seems like a better method, to me, once you are aware that is what it is for. * I am concerned for others by the USB nature of this power supply; there are two included USB tips you can use: One male USB micro B and One male USB-C. However, no instructions I could find tell users that the 5v setting should be used for the USB tips. It would be unfortunate to accidentally select the wrong (higher) voltage when using the USB tips on a USB device. * I am pleased to see assurances of safety features on the box: "over voltage protection", "over-current protection", "short-circuit protection", "over-temperature protection", "fire-retardant outer shell", "Anti-EMI interference", but I dont have the resources to test that these are true. * Construction seems sturdy. I did not notice any defects. But I'm also not going to be stressing this unit. My output voltage observations: Unit #1 3.29v LED readout => 3.26v voltmeter 4.50v LED readout => 4.50v voltmeter 6.00v LED readout => 6.01v voltmeter 7.51v LED readout => 7.52v voltmeter 9.00v LED readout => 9.03v voltmeter 10.5v LED readout => 10.54v voltmeter 12.0v LED readout => 12.03v voltmeter 13.5v LED readout => 13.53v voltmeter 15.0v LED readout => 15.04v voltmeter 16.5v LED readout => 16.52v voltmeter 18.0v LED readout => 18.02v voltmeter 19.5v LED readout => 19.51v voltmeter 21.0v LED readout => 21.0v voltmeter 22.5v LED readout => 22.5v voltmeter 24.0v LED readout => 24.0v voltmeter 24.5v LED readout => 24.4v voltmeter (24.5 is maximum for this unit) Unit #2 3.38v LED readout => 3.40v voltmeter 4.52v LED readout => 4.58v voltmeter 6.01v LED readout => 6.09v voltmeter 7.51v LED readout => 7.62v voltmeter 9.02v LED readout => 9.15v voltmeter 10.5v LED readout => 10.69v voltmeter 12.0v LED readout => 12.22v voltmeter 13.5v LED readout => 13.81v voltmeter 15.0v LED readout => 15.26v voltmeter 16.5v LED readout => 16.82v voltmeter 18.0v LED readout => 18.24v voltmeter 19.5v LED readout => 19.78v voltmeter 21.0v LED readout => 21.3v voltmeter 22.5v LED readout => 22.8v voltmeter 24.0v LED readout => 24.2v voltmeter (24.0 is maximum for this unit) FYI

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-27*