---
product_id: 256052612
title: "SMAKNSMAKN DC 5V/4A 20W Switching Power Supply Adapter 100-240 Ac(US)"
brand: "smakn"
price: "$58.54"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/256052612-smaknsmakn-dc-5v-4a-20w-switching-power-supply-adapter-100
store_origin: US
region: United States of America
---

# 20W max power output 100-240V global compatibility 5V/4A stable current delivery SMAKNSMAKN DC 5V/4A 20W Switching Power Supply Adapter 100-240 Ac(US)

**Brand:** smakn
**Price:** $58.54
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your productivity, anywhere you go!

## Quick Answers

- **What is this?** SMAKNSMAKN DC 5V/4A 20W Switching Power Supply Adapter 100-240 Ac(US) by smakn
- **How much does it cost?** $58.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/256052612-smaknsmakn-dc-5v-4a-20w-switching-power-supply-adapter-100)

## Best For

- smakn enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Reliable:** Sleek switching adapter built for durability and minimal energy loss—power up with confidence.
- • **Precision Fit Design:** Optimized 2.5mm x 5.5mm plug with inside positive polarity for perfect device compatibility.
- • **Consistent Current Flow:** Stable 5V/4A output guarantees smooth operation without overheating or power dips.
- • **Power-Packed Performance:** Delivers a robust 20W output ensuring your devices run efficiently and reliably.
- • **Universal Voltage Mastery:** Seamlessly powers devices worldwide with 100-240V input—travel without limits.

## Overview

The SMAKN DC 5V/4A 20W Switching Power Supply Adapter offers universal 100-240V input compatibility and a stable 5V/4A output, delivering reliable power to devices with a 2.5mm x 5.5mm plug and inside positive polarity. Compact and efficient, it ensures consistent performance for your essential electronics.

## Description

SMAKNSMAKN DC 5V/4A 20W Switching Power Supply Adapter 100-240 Ac(US)

## Features

- Compatible with most devices that use a 5V 4A or lower amperage
- 2.5mm x 5.5mm (Inner diameter x Outer diameter) with inside positive polarity
- Input 100240V~0.6A, 50/60Hz / Output 5V 4000mA 20W Max

## Product Details

- **Brand:** SMAKN
- **Connectivity technology:** HDMI
- **Connector type:** Barrel Connector
- **Compatible devices:** adapter
- **Input voltage:** 5 Volts
- **Mounting type:** Wall Mount
- **Amperage:** 4 Amps
- **Wattage:** 2E+1
- **Specification met:** CE, FCC
- **Output voltage:** 5 Volts

## Images

![SMAKNSMAKN DC 5V/4A 20W Switching Power Supply Adapter 100-240 Ac(US) - Image 1](https://m.media-amazon.com/images/I/71n42GZugBL.jpg)
![SMAKNSMAKN DC 5V/4A 20W Switching Power Supply Adapter 100-240 Ac(US) - Image 2](https://m.media-amazon.com/images/I/411gkq1jIUL.jpg)
![SMAKNSMAKN DC 5V/4A 20W Switching Power Supply Adapter 100-240 Ac(US) - Image 3](https://m.media-amazon.com/images/I/61h624nvYAL.jpg)
![SMAKNSMAKN DC 5V/4A 20W Switching Power Supply Adapter 100-240 Ac(US) - Image 4](https://m.media-amazon.com/images/I/411gkq1jIUL.jpg)

## Questions & Answers

**Q: Can i use this to power nvidia jetson nano**
A: This is what you do!   You check your old power supply and look at the Voltage which is 5 and next to it is the important value  How many amps  1A 2A 3A 4A etc.  The SMAKN supply replaces anything up to 4A.  If the power supply plug is not the same, you can clip your old power supply plug off and solder it to the new one. There is always a neighbor that will help you solder it if you don't know how.

**Q: Is it 2.5mm x 5.5mm (Inner diameter x Outer diameter) with inside positive polarity ? I would expect standard 2.1mm x 5.5mm, let me know**
A: This is a compatible project: 5.5 * 2.5 and 5.5 * 2.1
Internal positive external negative

**Q: Will this work fine with Raspberry Pi 3 and 4?**
A: Yes, the SMAKN 5V/4 Amp 20 Watt Power supply will work with the Raspberry Pi line of devices. Please note that the Raspberry Pi 4 Model does "Only" has a USB-C type power jack. You would need to get a Adapter/Gender Changer for the 2.5/5.5 MM Barrel Jack for the connector that comes with the SMAKN Power Supply. Just search for USB-C Male to 2.5/5.5 Female Adapter or Gender Changer. Thank you Robert Tonkavich

**Q: What is the warranty period for this item?**
A: One year warranty (free replacement)

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-01*