Charge 4 Devices at Once – Faster Than Ever

The Maerknon 40W 4-Port USB Wall Charger is your ultimate travel and home charging companion. Equipped with Quick Charge 3.0 (QC 3.0) technology, this powerful adapter delivers up to 40W of total output across four USB-A ports — so you can charge your iPhone, Android, tablet, and earbuds all at the same time, without slowing any of them down.

Whether you're at home, in the office, or on the road, this compact multi-port charger fits EU, US, and UK sockets, making it an ideal travel adapter. Made in Mainland China.

Key Features

4 USB-A Ports – Charge up to 4 devices simultaneously
40W Max Output – Delivers fast, reliable power to all ports
QC 3.0 Compatible – Quick Charge 3.0 for compatible smartphones
Universal Compatibility – Works with iPhone, Samsung, Xiaomi, Huawei, and more
EU / US / UK Plug Options – Perfect for international travel
5V 3A Output – Stable, safe charging for all USB devices
Certified & Safe – UL, RoHS, EMC, and CE certified for peace of mind
No High-Concern Chemicals – RoHS-compliant, environmentally responsible design
Compact Travel Design – Lightweight and easy to pack

Specifications

Output Power	40W (Max)
Output Ports	4 × USB-A
Output	5V / 3A
Fast Charge Protocol	QC 3.0
Power Source	AC Mains
Plug Types	EU / US / UK
Certifications	UL, RoHS, EMC, CE
GaN Technology	No
Country of Origin	Mainland China

Compatible With

iPhone 15 / 14 / 13 / 12 / 11 / XS / X / 8, Samsung Galaxy series, Xiaomi, Huawei, OnePlus, Google Pixel, iPad, AirPods, Bluetooth speakers, and virtually any USB-A chargeable device.

Related Products You May Like

Safe Charging, Certified Standards

This charger is certified to meet UL, CE, EMC, and RoHS standards — giving you confidence that your devices are protected from overcharging, overheating, and short circuits. For more information on charger safety standards, visit the U.S. Consumer Product Safety Commission – Electrical Safety.

Learn more: Battery charger

Frequently Asked Questions

Q: Is this 40W USB charger compatible with iPhones and Android phones?

A: Yes! This multi-port USB wall charger is compatible with a wide range of devices including iPhone 8 through iPhone 15, Samsung Galaxy, Xiaomi, Huawei, OnePlus, and any device that charges via USB-A. All four ports deliver stable 5V/3A output for safe, efficient charging.

Q: Does this charger support Quick Charge 3.0 (QC 3.0)?

A: Yes, this wall charger supports Quick Charge 3.0 for compatible smartphones, allowing significantly faster charge times compared to standard 5W adapters. Non-QC devices will still charge at their standard rate.

Q: Can I use this USB charger when traveling internationally?

A: Absolutely. This adapter is available with EU, US, and UK plug configurations, making it a versatile travel charger for use across multiple regions and countries.

Q: Is it safe to charge 4 devices at the same time?

A: Yes. The charger is rated at 40W total output and is certified to UL, CE, EMC, and RoHS standards. Built-in protections guard against overcharging, overheating, and short circuits to keep all your devices safe during simultaneous charging.