Introduction
Thank you for choosing the imokin 100W GaN USB C Charger. This compact and powerful adapter is designed to provide fast and efficient charging for a wide range of devices, including laptops, tablets, and smartphones. Featuring advanced GaN III technology and multiple safety mechanisms, it ensures reliable performance and protection for your electronics. This manual provides essential information on setup, operation, maintenance, and troubleshooting to help you get the most out of your charger.

The imokin 100W GaN USB C Charger delivering maximum power to a MacBook Pro.
What's in the Box
Upon opening your package, please ensure all items are present and in good condition:
- 1 x imokin 100W USB C Wall Charger (Model GP1027)
- 1 x 3.9 ft USB-C Cable
- 1 x Welcome Guide
Product Overview
The imokin 100W GaN USB C Charger features a compact design with multiple ports for versatile charging. It incorporates advanced GaN III technology for enhanced efficiency and reduced heat generation.
Key Features:
- 100W Max Output: Capable of delivering up to 100W from a single USB-C port.
- 4 Charging Ports: Includes 3 USB-C ports and 1 USB-A port for simultaneous charging of multiple devices.
- GaN III Technology: Provides higher power density, improved efficiency, and a more compact form factor compared to traditional silicon chargers.
- Foldable Prongs: Enhances portability and protects the prongs during travel.

Illustration of the advanced GaN III technology within the charger.
Official product video demonstrating the imokin 100W 4-Port GaN Charger Block.
Setup
Setting up your imokin 100W GaN USB C Charger is straightforward:
- Unfold the Prongs: Gently pull out the foldable prongs from the charger body.
- Connect to Power Outlet: Plug the charger into a standard wall outlet (AC 100-240V, 50/60Hz).
- Connect Devices: Use appropriate USB-C or USB-A cables (one USB-C cable is included) to connect your devices to the charger's available ports.
- Verify Charging: Ensure your devices indicate that they are charging.

The charger connected to a wall outlet, powering multiple devices.
Operating Instructions
The imokin 100W GaN USB C Charger automatically detects connected devices and delivers optimal power. For best performance, use high-quality charging cables.
Power Distribution:
The charger intelligently distributes its total 100W output across the connected devices. The maximum output from individual ports varies depending on the number and type of devices connected:
- Single USB-C Port (C1, C2, or C3): Can deliver up to 100W, ideal for fast-charging laptops like the MacBook Pro 16-inch.
- Single USB-A Port: Can deliver up to 22.5W.
- Multiple Ports in Use: The 100W total power is dynamically allocated. For example, when charging two MacBook Air laptops simultaneously, the power might be distributed as 65W for one and 30W for the other, or similar intelligent splits based on device requirements.

Simultaneous charging of two MacBook Air laptops.

The compact design helps reduce cable clutter compared to multiple individual chargers.
Safety Information
Your imokin charger is equipped with a comprehensive Safety System to protect your devices and ensure safe operation:
- Overvoltage Protection: Prevents damage from excessive voltage input.
- Overcurrent Protection: Safeguards against excessive current flow.
- Short Circuit Protection: Automatically cuts power in case of a short circuit.
- Overheating Protection: Monitors temperature and adjusts output to prevent overheating.
- Surge Protection: Protects against sudden power surges.
Always use the charger in a well-ventilated area and avoid covering it during operation. Do not expose the charger to liquids or extreme temperatures.

Visual representation of the charger's integrated safety mechanisms.
Maintenance
To ensure the longevity and optimal performance of your imokin charger, follow these maintenance guidelines:
- Cleaning: Disconnect the charger from the power outlet and all devices before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners or abrasive materials.
- Storage: When not in use, store the charger in a cool, dry place away from direct sunlight and moisture. Fold the prongs to prevent damage.
- Cable Care: Avoid bending or twisting charging cables excessively, as this can damage the internal wires.
Troubleshooting
If you encounter any issues with your imokin 100W GaN USB C Charger, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not charging | Loose connection; Faulty cable; Incompatible device; Power outlet issue | Ensure cables are securely connected. Try a different cable. Verify device compatibility. Test with a different power outlet. |
| Slow charging speed | Cable not supporting fast charging; Too many devices connected; Device not supporting fast charging | Use a high-quality, fast-charging compatible cable. Disconnect other devices to allow higher power to a single device. Ensure your device supports fast charging protocols. |
| Charger feels warm | Normal operation under heavy load; Poor ventilation | It is normal for the charger to feel warm during operation, especially when charging multiple devices or high-power devices. Ensure adequate ventilation and do not cover the charger. If it becomes excessively hot, disconnect immediately and contact support. |
| USB-A port not charging reliably | Specific device incompatibility; Port malfunction | Try charging a different USB-A device. If the issue persists with multiple devices, the port may be faulty. Contact customer service. |
Specifications
Detailed technical specifications for your imokin 100W GaN USB C Charger (Model GP1027):
| Feature | Detail |
|---|---|
| Model Number | GP1027 |
| Brand | imokin |
| Wattage | 100W (Max) |
| Input Voltage | 100-240V ~ 50/60Hz |
| Output Ports | 3 x USB Type-C, 1 x USB Type-A |
| Connector Type | USB Type A, USB Type C |
| Technology | GaN III |
| Special Features | Fast Charging, Lightweight Design, Travel-friendly (Foldable Prongs) |
| Compatible Devices | Laptops (MacBook Pro/Air), Tablets (iPad Pro/Air/Mini), Smartphones (iPhone 17/16/15/14/13/12/11 series, Samsung Galaxy S25/S24/S23/S22/S21, Google Pixel, LG), Headphones, Steam Deck, and more. |
| Material | Polycarbonate (PC) |
| Certifications | CE, FCC, RoHS |
| Dimensions | Compact and Portable (specific dimensions not provided in data, but described as 35% smaller than original 96W MacBook brick) |

The compact design of the charger, ideal for travel and daily use.

Wide compatibility with over 3000 devices.
Warranty and Support
imokin stands behind the quality of its products. Your imokin 100W GaN USB C Charger comes with a comprehensive warranty and dedicated customer support.
- Warranty: An 18-month worry-free replacement warranty is provided for this product.
- Customer Service: For any questions, concerns, or assistance, please contact our 24/7 online customer service. Refer to the contact information provided in your welcome guide or visit the official imokin website for support details.