---
product_id: 164465392
title: "COOLM AC DC 5V 4A Power Supply Adapter 20W Charger 3.5A 3A 2.5A 2A 1.5A"
brand: "coolm"
price: "S$30"
currency: SGD
in_stock: true
reviews_count: 8
category: "Coolm"
url: https://www.desertcart.sg/products/164465392-coolm-ac-dc-5v-4a-power-supply-adapter-20w-charger
store_origin: SG
region: Singapore
---

# 20W max power output Universal 100-240V AC input Multi-layer safety protections COOLM AC DC 5V 4A Power Supply Adapter 20W Charger 3.5A 3A 2.5A 2A 1.5A

**Brand:** coolm
**Price:** S$30
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your productivity with confidence — the last adapter you'll ever need!

## Quick Answers

- **What is this?** COOLM AC DC 5V 4A Power Supply Adapter 20W Charger 3.5A 3A 2.5A 2A 1.5A by coolm
- **How much does it cost?** S$30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/164465392-coolm-ac-dc-5v-4a-power-supply-adapter-20w-charger)

## Best For

- coolm enthusiasts

## Why This Product

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

## Key Features

- • **Smart Safety Shield:** Built-in short circuit, overload, over voltage, and thermal cut-off protections keep your gear safe 24/7.
- • **Trusted & Certified:** CE, FCC, and RoHS certified with a 2-year warranty—quality and reliability you can count on.
- • **Global Compatibility:** Works seamlessly worldwide with 100-240V AC input and Type F plug, ideal for the jet-setting professional.
- • **Plug & Play Versatility:** Fits standard 5.5mm x 2.5mm and 5.5mm x 2.1mm barrel connectors, replacing multiple adapters effortlessly.
- • **Power Up Without Limits:** Delivers a robust 5V 4A output, perfect for demanding devices without amperage restrictions.

## Overview

The COOLM AC DC 5V 4A Power Supply Adapter delivers a stable 20W output with universal 100-240V AC input compatibility. Designed for a wide range of devices including Odroid XU4, Jetson Nano, and WeBoost models, it supports multiple barrel plug sizes and features advanced safety protections like short circuit and thermal cut-off. Certified by CE, FCC, and RoHS, this wall-mount adapter combines versatility, reliability, and peace of mind with a 2-year warranty.

## Description

Features: --This power supply is DC 5V 4A. It take any input from 100V up to 240V AC, which is what comes out of your wall socket, and output 5V DC for the devices that require 5V 4A input. --Third generation smart IC chip features short circuit protection, overload protection, over voltage protection to protect your device. Specifications: Input Voltage: 100-240V AC 50/60Hz Output Voltage: 5V DC Output current: 4A Output Power: 20W MaxPole of DC plug: center positive(+), outside negative (-) DC Cable length: about 3.6FT / 110cm . Power Cord about 3.9FT / 120cm DC Output Plug Size: 5.5mm x 2.5mm ( Compatible with 5.5mm x 2.1mm Plug )It perfect replacement for 2A / 2.5A / 3A as amperage isnt forced. (If your previous Adaptor was less than 4A then this will be a perfect replacement as amperage is NOT Forced). Compatible with --WeBoost 850012 , WeBoost connect RV 65, Jetson Nano, Atomic Pi, USB Hub,Odroid XU4 / XU4Q.. --Compatible with 5V USB 3.0 Universal Dual Monitor Docking Station , Compatible with 5V 7 Port USB 2.0 Hub Tower. --5V Electronic Product and Can replace 5V 4A Power Supply of the barrel size 2.1mmx5.5mm / 2.5mmx5.5mmPackage: 1 x DC 5V 4A Power Supply 1 x AC Power Cord

Review: Reliable Power for DIY Electronics Setup - This 5V 4A power adapter has been a solid and affordable solution for powering a variety of small electronics projects and devices. From the start, it delivered stable output and handled higher-demand setups without issues, making it a practical replacement for lower-amp adapters like 2A–3.5A units. The build feels fairly sturdy, and it runs quietly without noticeable heat or noise during use. It’s compatible with a wide range of devices such as Jetson Nano, Odroid boards, USB hubs, and other 5V systems with a standard 5.5mm barrel connector, which makes it very versatile for hobbyists and tech setups. Based on other user experiences, many have also successfully used it for networking and signal-boosting equipment with good results, especially when consistent power delivery is needed. In my own use case, it worked well for powering a continuous load setup, and I had no stability issues during operation. My wife even noted how convenient it was to finally have a single adapter powering everything in one place, reducing clutter and extra cables around the workspace. Did not last quite as long as the oem ones but did pretty well and was cheaper One downside is that a small number of users reported early failure after weeks of use, which suggests some inconsistency in long-term durability. However, for the price point, it still offers strong value. A practical choice if you need a budget-friendly, multipurpose 5V power supply for electronics or DIY projects.
Review: Better than expected!! - Comes with three extra tips that plug into the regular barrel jack to make a smaller barrel jack, micro USB, or USB c.

## Features

- Input: AC 100-240V, 50/60Hz Output: DC 5V 4A 20W, DC interface size: 5.5mm x 2.5mm (and compatible with 5.5mm x 2.1mm)
- It perfect replacement for 2A / 2.2A / 2.5A / 3A / 3.5A as amperage isnt forced. (If your previous Adaptor was less than 4A then this will be a perfect replacement as amperage is NOT Forced).
- Compatible with Odroid XU4 / XU4Q, WeBoost 850012 , WeBoost connect RV 65, Jetson Nano, Atomic Pi, USB Hub and can replace 5V 4A Power Supply of the barrel size 5.5mmx2.5mm / 5.5mmx2.1mm. ( Please note: It can work for WeBoost 850010 )
- Compatible with 5V USB 3.0 Universal Dual Monitor Docking Station, Compatible with 5V 7 Port USB 2.0 Hub Tower with 5V/4A Power Adapter
- It are certified by CE / FCC certification. We focus on providing quality power products and excellent customer service and Automatic overload cut-off, over voltage cut-off, automatic thermal cut-off, short circuit protection.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07RTWD725 |
| Amperage | 4 A |
| Brand | COOLM |
| Built-In Media | 5V 4A Power Supply Adapter |
| Color | 5V 4A Powr Supply |
| Compatible Devices | WS2812B WS2811 LED Strip Lights, CCTV Camera, WeBoost 850012, Jetson Nano, Odroid XU4, Odroid XU4Q |
| Compatible Phone Models | incompatible |
| Compatible Power Plug Type | Type F - 2 pin (German) |
| Connectivity Technology | DC Power Plug |
| Connector Type | Barrel Connector |
| Current | DC |
| Current Rating | 4 A |
| Customer Package Type | FFP |
| Customer Reviews | 4.2 out of 5 stars 160 Reviews |
| Enclosure Material | Plastic |
| Included Components | 5V 4A Power Supply Adapter |
| Input Voltage | 110 volts_of_alternating_current |
| Item Weight | 0.36 kg |
| Main Power Connector Type | 2 Pin |
| Manufacturer | COOLM |
| Mfr Part Number | S-P-5V4A-C-US |
| Model Number | YU0504 |
| Mounting Type | Wall Mount |
| Number of Items | 1 |
| Number of Power Levels | 1 |
| Output Current | 4 A |
| Output Voltage | 5 volts_of_direct_current |
| Power Plug | Type F - 2 pin (German) |
| Power Source | Corded Electric |
| Special Feature | Short Circuit Protection |
| Special Features | Short Circuit Protection |
| Specification Met | CE, FCC, RoHS |
| Total Usb Ports | 1 |
| Unit Count | 1 Count |
| Warranty Description | 2 Years Warranty |
| Wattage | 20 watts |

## Product Details

- **Amperage:** 4 A
- **Brand:** COOLM
- **Color:** 5V 4A Powr Supply
- **Compatible Devices:** WS2812B WS2811 LED Strip Lights, CCTV Camera, WeBoost 850012, Jetson Nano, Odroid XU4, Odroid XU4Q
- **Compatible Phone Models:** incompatible
- **Connector Type:** Barrel Connector
- **Included Components:** 5V 4A Power Supply Adapter
- **Input Voltage:** 110 volts_of_alternating_current
- **Special Feature:** Short Circuit Protection
- **Total USB Ports:** 1

## Images

![COOLM AC DC 5V 4A Power Supply Adapter 20W Charger 3.5A 3A 2.5A 2A 1.5A - Image 1](https://m.media-amazon.com/images/I/71RFhVw-KaL.jpg)
![COOLM AC DC 5V 4A Power Supply Adapter 20W Charger 3.5A 3A 2.5A 2A 1.5A - Image 2](https://m.media-amazon.com/images/I/71U6aFrzlEL.jpg)
![COOLM AC DC 5V 4A Power Supply Adapter 20W Charger 3.5A 3A 2.5A 2A 1.5A - Image 3](https://m.media-amazon.com/images/I/71XcAJyBgjL.jpg)
![COOLM AC DC 5V 4A Power Supply Adapter 20W Charger 3.5A 3A 2.5A 2A 1.5A - Image 4](https://m.media-amazon.com/images/I/71d2U0xTFCL.jpg)
![COOLM AC DC 5V 4A Power Supply Adapter 20W Charger 3.5A 3A 2.5A 2A 1.5A - Image 5](https://m.media-amazon.com/images/I/71XUY62PFYL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable Power for DIY Electronics Setup
*by J***N on April 14, 2026*

This 5V 4A power adapter has been a solid and affordable solution for powering a variety of small electronics projects and devices. From the start, it delivered stable output and handled higher-demand setups without issues, making it a practical replacement for lower-amp adapters like 2A–3.5A units. The build feels fairly sturdy, and it runs quietly without noticeable heat or noise during use. It’s compatible with a wide range of devices such as Jetson Nano, Odroid boards, USB hubs, and other 5V systems with a standard 5.5mm barrel connector, which makes it very versatile for hobbyists and tech setups. Based on other user experiences, many have also successfully used it for networking and signal-boosting equipment with good results, especially when consistent power delivery is needed. In my own use case, it worked well for powering a continuous load setup, and I had no stability issues during operation. My wife even noted how convenient it was to finally have a single adapter powering everything in one place, reducing clutter and extra cables around the workspace. Did not last quite as long as the oem ones but did pretty well and was cheaper One downside is that a small number of users reported early failure after weeks of use, which suggests some inconsistency in long-term durability. However, for the price point, it still offers strong value. A practical choice if you need a budget-friendly, multipurpose 5V power supply for electronics or DIY projects.

### ⭐⭐⭐⭐⭐ Better than expected!!
*by B***D on July 25, 2026*

Comes with three extra tips that plug into the regular barrel jack to make a smaller barrel jack, micro USB, or USB c.

### ⭐⭐⭐⭐⭐ Review of 5 volt 4 amp power supply.
*by M***I on December 22, 2024*

I bought this to replace a 3 amp power supply that failed in service because it was under designed for the load. It was for a grow light requiring 3 amps. This 4 amp power supply was bigger and supposed to be able to provide 33% more than the required 3 amps. I have had it on over night for 2 weeks with no problems. It looks like it will do the job. There is a video on this on youtube, just search Marty Plecki and look for it.

## Frequently Bought Together

- 5V 4A Power Supply Adapter - COOLM AC 100-240V to DC 5V/4A 20W Charger Plug DC 5.5mm x 2.5mm Universal for Atomic Pi, Jetson Nano, USB Hub, WeBoost 850012 Connect RV 65 RV65, Odroid XU4 / XU4Q
- Waveshare AC8265 Wireless NIC Module for Jetson Orin Nano/NX Supports 2.4GHz / 5GHz Dual Band WiFi and Bluetoth 4.2
- Compatible with NVIDIA Jetson Nano Camera IMX219-160 8-Megapixels Camera Module 3280 × 2464 Resolution 160 Degree Wide Angle of View with IMX219 Sensor

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-10-05*