---
product_id: 686573934
title: "Universal Power Supply 3V~24V 3A 72W Adjustable Variable 3V 5V 9V 12V 18V 20V 24V AC/DC Adapter Charger, 100V-240V AC to DC Converter with 14 Tips, Polarity Converter and 4-Way Power Splitter Cable"
brand: "wefomey"
price: "AR$85339"
currency: ARS
in_stock: true
reviews_count: 8
category: "Wefomey"
url: https://www.desertcart.com.ar/products/686573934-universal-power-supply-3v-24v-3a-72w-adjustable-variable-3v
store_origin: AR
region: Argentina
---

# 72W max power output 3V-24V adjustable voltage range 14 versatile DC tips included Universal Power Supply 3V~24V 3A 72W Adjustable Variable 3V 5V 9V 12V 18V 20V 24V AC/DC Adapter Charger, 100V-240V AC to DC Converter with 14 Tips, Polarity Converter and 4-Way Power Splitter Cable

**Brand:** wefomey
**Price:** AR$85339
**Availability:** ✅ In Stock

## Summary

> 🔋 One Adapter to Rule Them All — Power Smarter, Not Harder!

## Quick Answers

- **What is this?** Universal Power Supply 3V~24V 3A 72W Adjustable Variable 3V 5V 9V 12V 18V 20V 24V AC/DC Adapter Charger, 100V-240V AC to DC Converter with 14 Tips, Polarity Converter and 4-Way Power Splitter Cable by wefomey
- **How much does it cost?** AR$85339 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/686573934-universal-power-supply-3v-24v-3a-72w-adjustable-variable-3v)

## Best For

- wefomey enthusiasts

## Why This Product

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

## Key Features

- • **Safety First, Always:** Built-in protections against over-voltage, over-current, overheating, and short circuits keep your devices and workspace safe.
- • **Multi-Device Power Hub:** 4-way splitter cable lets you power multiple devices simultaneously from a single outlet—declutter your workspace.
- • **Plug & Play Versatility:** 14 DC tips plus polarity converter ensure seamless compatibility with your gadgets—no more hunting for adapters.
- • **Real-Time Voltage Feedback:** Clear LCD display shows output voltage to prevent accidental damage—precision control at your fingertips.
- • **Power Your Entire Tech Arsenal:** Adjustable 3V to 24V output covers almost every small device from LED strips to 3D printers.

## Overview

This Universal Power Supply delivers a flexible 3V to 24V DC output at up to 3A (72W), compatible with a wide range of electronics. It includes 14 interchangeable DC tips, a polarity converter, and a 4-way splitter cable, making it the ultimate all-in-one power solution for professionals and hobbyists alike. Safety features and an LCD voltage display ensure reliable, damage-free operation across multiple devices.

## Description

Buy Universal Power Supply 3V~24V 3A 72W Adjustable Variable 3V 5V 9V 12V 18V 20V 24V AC/DC Adapter Charger, 100V-240V AC to DC Converter with 14 Tips, Polarity Converter and 4-Way Power Splitter Cable: Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: A great value for a hobbyist supply. - I got this to help me work on some single board computer (SBC) projects at home. At the office I have access to professional bench supplies, which are expensive. For $18 this does what I need it to do. The following points are for information in case you are looking at this - not complaints, but things to be aware of. I have access to an accurate (Fluke $$$) handheld multimeter at home, not all do. On my unit the voltage displayed on the readout is around 0.1V higher than the actual output. It's pretty much constant regardless of the output setting. So without a load I can set the voltage on the unit from 2.91 to 24.4 volts (indicated) which is actually 2.82 to 24.29 volts (measured). For $18 I can live with that. One thing that may trip you up is that it appears that the output cable uses 24 AWG wire, resulting in a resistance of around 0.190Ω. While that might not sound like much, at the rated 3 amps that's a voltage drop of 0.57V. I've got SBCs that need a 5V nominal supply, and that run some USB connected peripherals. The 5V SBC can draw up to 2A if it's also recharging its backup LiPo battery, so if I set the supply to 5.00V I'll actually be getting 4.92V, and after going through the output cable I'll lose another 0.38V and be at 4.54V going in to the SBC. This is getting very close to the USB sec minimum of 4.40V, which is what goes to the USB-A ports on the SBC via current limiters that introduce a small drop themselves. This can all be cured by raising the displayed voltage to 5.5V, but it's something to be aware of for those that don't have the ability to measure the actual voltage under load. I love the huge array of cable ends that come with it, including alligator clips and a screw terminal block. One occasionally encounters a device that's been designed for some reason with the central pin negative, so the polarity inverting cord is a great touch. The adapter itself is equipped with a 5.5x2.1 barrel which is about the most common used in this voltage & current range - so no adapter needed! As another reviewer noted about the only thing I miss is a 5.5x2.1 to USB-A female but those are easy enough to make up with hand soldering. Watch out for the 1 in/4 out 5.5x2.1 fan out adapter - the 4 output leads are TINY and I would not be surprised (based on voltage drop measured) if they are 28 AWG or 30 AWG so you'll get some serious voltage drop through there on any heavy draw. Finally, at low voltages the adjustment is pretty sensitive, so I'll probably replace the knob with a larger diameter unit. It's got a 6mm splined shaft and the knob pulls off, so plenty of those available. Not sure I'd use it as a permanent replacement but for the bench it's great. May buy more.
Review: A technophile joy to salvage so many tools. - Finally a clever charger for all those batteries built into products we use occasionally as needed and have lost the weird proprietary little charging box. Works for all the USB C charged stuff as well. One charger with a dozen fittings. And best: the technophile wonder of a rotary knob adjustable power output with a steam gauge in bright red numbers to watch it work! No household should be without this problem solver.

## Features

- Input: AC 100~240V, 50/60Hz; Output: DC 3~24V Adjustable, Max 3A 72W; It can apply to most appliances which the input voltage is between 3V to 24V and the rating power is equal to or less than 72 Watt. LCD display will show the output voltage, in case that wrong voltage regulation damage your device
- 14pcs DC 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. Easily meet the power requirement of your different devices. Can be applied to almost all commonly used electronic devices.
- High-Efficient Power Solution: This DC 1 female to 4 male power splitter cable allows to power two or more cameras or LED strip lights with 1 power adapter, without adding extra electrical outlets and purchasing more power adapters. It is useful for powering multiple devices from one central adapter
- Built-in Multiple Safety Protection Systems: Automatic over voltage cut-off, over current cut-off, over temperature cut-off, short circuit cut-off. No noise, no explosion, no fire hazard, safe to use. 6ft long power cable makes it convenient to use
- 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, 3D printer, 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. (Check dc jack before buy: 5.5x2.5mm, compatible 5.5x2.1mm)
- Package Includes: 1 x 3~24V 3A universal ac/dc adapter, 14 x DC tips, 1x reverse polarity converter, 1x alligator clip test lead, 1x 4-way power splitter cable. If you have any questions, please feel free to contact us via desertcart, and we are here for you
- Tip: 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. When using the 4 way split cable connections to a Single power adapter, the total current required by the Electronic device should not exceed 3A, otherwise the power supply will not work properly. If 4 interfaces are connected at the same time, the current of a single demand cannot exceed 0.75A

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DMSDX732 |
| Best Sellers Rank | #4,304 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #18 in Power Converters |
| Customer Reviews | 4.5 4.5 out of 5 stars (386) |
| Date First Available | December 20, 2024 |
| Item Weight | 13.7 ounces |
| Item model number | f61b775d-fc4f-4997-b389-44f6f8e2180f |
| Manufacturer | Dong Guan Shi He Yu Technology Co., Ltd. |
| Product Dimensions | 5.8 x 2.36 x 1.38 inches |

## Product Details

- **Amperage:** 3 Amps
- **Brand:** Wefomey
- **Color:** balck
- **Connector Type:** Barrel Connector, Micro USB, Type-C, DC terminal connector
- **Input Voltage:** 240 Volts
- **Number of Items:** 1
- **Output Current:** 3 Amps
- **Wattage:** 72 watts

## Images

![Universal Power Supply 3V~24V 3A 72W Adjustable Variable 3V 5V 9V 12V 18V 20V 24V AC/DC Adapter Charger, 100V-240V AC to DC Converter with 14 Tips, Polarity Converter and 4-Way Power Splitter Cable - Image 1](https://m.media-amazon.com/images/I/61Hp9kKil9L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A great value for a hobbyist supply.
*by E***D on October 4, 2025*

I got this to help me work on some single board computer (SBC) projects at home. At the office I have access to professional bench supplies, which are expensive. For $18 this does what I need it to do. The following points are for information in case you are looking at this - not complaints, but things to be aware of. I have access to an accurate (Fluke $$$) handheld multimeter at home, not all do. On my unit the voltage displayed on the readout is around 0.1V higher than the actual output. It's pretty much constant regardless of the output setting. So without a load I can set the voltage on the unit from 2.91 to 24.4 volts (indicated) which is actually 2.82 to 24.29 volts (measured). For $18 I can live with that. One thing that may trip you up is that it appears that the output cable uses 24 AWG wire, resulting in a resistance of around 0.190Ω. While that might not sound like much, at the rated 3 amps that's a voltage drop of 0.57V. I've got SBCs that need a 5V nominal supply, and that run some USB connected peripherals. The 5V SBC can draw up to 2A if it's also recharging its backup LiPo battery, so if I set the supply to 5.00V I'll actually be getting 4.92V, and after going through the output cable I'll lose another 0.38V and be at 4.54V going in to the SBC. This is getting very close to the USB sec minimum of 4.40V, which is what goes to the USB-A ports on the SBC via current limiters that introduce a small drop themselves. This can all be cured by raising the displayed voltage to 5.5V, but it's something to be aware of for those that don't have the ability to measure the actual voltage under load. I love the huge array of cable ends that come with it, including alligator clips and a screw terminal block. One occasionally encounters a device that's been designed for some reason with the central pin negative, so the polarity inverting cord is a great touch. The adapter itself is equipped with a 5.5x2.1 barrel which is about the most common used in this voltage & current range - so no adapter needed! As another reviewer noted about the only thing I miss is a 5.5x2.1 to USB-A female but those are easy enough to make up with hand soldering. Watch out for the 1 in/4 out 5.5x2.1 fan out adapter - the 4 output leads are TINY and I would not be surprised (based on voltage drop measured) if they are 28 AWG or 30 AWG so you'll get some serious voltage drop through there on any heavy draw. Finally, at low voltages the adjustment is pretty sensitive, so I'll probably replace the knob with a larger diameter unit. It's got a 6mm splined shaft and the knob pulls off, so plenty of those available. Not sure I'd use it as a permanent replacement but for the bench it's great. May buy more.

### ⭐⭐⭐⭐⭐ A technophile joy to salvage so many tools.
*by J***Y on February 7, 2026*

Finally a clever charger for all those batteries built into products we use occasionally as needed and have lost the weird proprietary little charging box. Works for all the USB C charged stuff as well. One charger with a dozen fittings. And best: the technophile wonder of a rotary knob adjustable power output with a steam gauge in bright red numbers to watch it work! No household should be without this problem solver.

### ⭐⭐⭐⭐⭐ Handy power supply
*by C***S on January 8, 2026*

Nice little power supply. Does everything it should. Appears to be made including the included connectors.

## Frequently Bought Together

- Universal Power Supply 3V~24V 3A 72W Adjustable Variable 3V 5V 9V 12V 18V 20V 24V AC/DC Adapter Charger, 100V-240V AC to DC Converter with 14 Tips, Polarity Converter and 4-Way Power Splitter Cable
- 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

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-24*