1. Product Overview
The ASOMETECH 100W GaN Charger H881 is a high-performance, compact wall charger designed for fast and efficient charging of multiple devices simultaneously. Utilizing advanced GaN (Gallium Nitride) technology, this charger offers a smaller form factor and higher efficiency compared to traditional silicon-based chargers. It features two USB-C ports and one USB-A port, providing a total output of up to 100W, suitable for laptops, tablets, and smartphones.

Key Features:
- GaN Technology: Smaller, more efficient, and generates less heat.
- 3-Port Design: Two USB-C ports and one USB-A port for versatile charging.
- 100W Max Output: Capable of fast charging high-power devices like laptops.
- Intelligent Power Distribution: Automatically adjusts power output for optimal charging.
- Digital Display: Shows real-time output power for each port.
- Wide Compatibility: Supports various fast charging protocols including PD3.0, QC4.0+, PPS, AFC, FCP, SCP, BC1.2.
- Multiple Protections: Built-in safeguards against short circuit, overcurrent, overvoltage, and overload.
- Compact & Portable: Foldable plug design (for some versions) makes it ideal for travel.
2. Specifications
| Feature | Specification |
|---|---|
| Brand Name | ASOMETECH |
| Model Number | H881 |
| Type | Quick charger |
| GaN | Yes |
| Intelligent Charge | Yes |
| Display Screen | Yes |
| Max. Output Power | 100W |
| Power Source | A.C. Source |
| Input | AC100-240V~50/60Hz 2.5A Max |
| Output Interface | 2 USB-C Ports, 1 USB-A Port |
| Applied Fast Charge Protocols | Samsung Adaptive Fast Charge, Huawei FCP, USB PD, BC1.2, Qualcomm Quick Charge, Huawei Quick Charge, PPS |
| Quality Certification | CCC, CE, ROHS, FCC, WEEE, UL, CB, EMC |
| Dimensions (approx.) | 64.5mm (Height) x 32.5mm (Width) x 53.1mm (Depth) |
| Weight (approx.) | 0.271 kg |
Output Specifications:
- USB-A Output: 5V/3A, 9V/3A, 12V/3A, 20V/3A (60W Max)
- USB-C1/C2 Output: 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/5A (100W Max); PPS: 3.3-20V/5A
- USB-C1 + C2 Output: 67W + 30W
- USB-C1 + USB-A Output: 67W + 30W
- USB-C2 + USB-A Output: 67W + 30W
- USB-C1 + C2 + USB-A Output: 45W + 30W + 18W
- Total Output: 100W Max

3. Setup
Choosing the Right Plug Adapter:
The ASOMETECH H881 charger is designed for worldwide use with various plug adapters. Select the appropriate plug for your region (US, EU, KR, UK, AU) and attach it securely to the charger. Some versions feature a foldable US plug for convenience.

Connecting to Power:
- Select the correct plug adapter for your region.
- Attach the adapter firmly to the charger unit.
- Plug the charger into a compatible AC power outlet (AC100-240V).
- The LED indicator light and digital display will activate, showing the current status.
4. Operating Instructions
Connecting Your Devices:
The charger features two USB-C ports (USB-C1, USB-C2) and one USB-A port. Use appropriate charging cables for your devices.
Charging Guide and Power Distribution:
The charger intelligently distributes power based on the connected devices. The digital display will show the real-time output power.

- Single-Port Charging:
- USB-C1: Up to 100W Max (e.g., Laptop)
- USB-C2: Up to 100W Max (e.g., Laptop)
- USB-A: Up to 60W Max (e.g., Tablet, Phone)
- Dual-Port Charging:
- USB-C1/C2 + USB-A: USB-C (67W Max) + USB-A (30W Max)
- USB-C1 + USB-C2: USB-C1 (67W Max) + USB-C2 (30W Max)
- Three-Port Charging:
- USB-C1 + USB-C2 + USB-A: USB-C1 (45W Max) + USB-C2 (30W Max) + USB-A (18W Max)
For optimal fast charging, ensure your devices and cables support the respective fast charging protocols (PD, QC, PPS, etc.).

Compatibility:
This charger is compatible with a wide range of devices, including:
- Apple Devices: iPhone 14/13/12 series, iPad Pro, MacBook Pro, MacBook Air, Apple Watch, AirPods Pro, HomePod mini.
- Android Devices: Samsung Galaxy S23 Ultra/S22/S21 series, Huawei, Xiaomi, OPPO, and other compatible smartphones and tablets.
- Other Devices: Dell XPS (note: may not charge at full speed due to protocol limitations), Steam Deck, and other USB-powered devices.

5. Maintenance
- Cleaning: Disconnect the charger from the power outlet before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners or aerosols.
- Storage: Store the charger in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Avoid dropping or subjecting the charger to strong impacts. Do not attempt to disassemble or modify the charger.
- Cable Care: Ensure charging cables are not bent sharply or tangled, as this can damage the cables and affect charging performance.
6. Troubleshooting
Common Issues and Solutions:
- Device not charging:
- Ensure the charger is securely plugged into a working power outlet.
- Check if the charging cable is properly connected to both the charger and your device.
- Try a different charging cable or port to rule out cable or port issues.
- Verify that your device is compatible with the charger's output specifications.
- Slow charging:
- Ensure your device and cable support fast charging protocols (PD, QC, etc.).
- When charging multiple devices, the power output per port may be reduced. Refer to the 'Charging Guide' section for expected power distribution.
- Some devices, like Dell laptops, may have specific charging protocols that prevent full-speed charging with third-party chargers.
- Charger feels warm during use:
- It is normal for the charger to become warm during operation, especially when charging multiple devices or high-power devices. The GaN technology helps manage heat efficiently.
- If the charger becomes excessively hot or emits smoke/unusual odors, immediately unplug it and discontinue use.
- Digital display not working or showing incorrect values:
- Unplug and replug the charger.
- Ensure no debris is obstructing the display.
Important Notes:
- This product supports multiple devices fast charging simultaneously; however, the maximum total output power is 100W. Please do not overload the charger beyond its specified limits.
- The fast charging capability is influenced by the device model and software version. Software updates may affect charger compatibility. If you have questions about your device's compatibility, please contact ASOMETECH customer support.
7. Safety Information
The ASOMETECH 100W GaN Charger is equipped with multiple protection features to ensure safe and reliable charging for your devices.

- Short Circuit Protection: Prevents damage from electrical shorts.
- Battery Safety: Protects device batteries from harm during charging.
- Overcurrent Protection: Safeguards against excessive current flow.
- Intelligent Protection System: Dynamically monitors and adjusts charging parameters.
- Overvoltage Protection: Prevents damage from voltage spikes.
- Overload Protection: Protects against drawing too much power.
- Dynamic Temperature Sensor: Monitors the charger's temperature to prevent overheating.
- UL94-V0 Rated Enclosure: High-grade flame-retardant material for enhanced safety.
- Heat Dissipation Design: Ensures efficient cooling for safe overnight charging.
General Safety Precautions:
- Do not expose the charger to water, moisture, or high humidity.
- Avoid using the charger in extreme temperatures or direct sunlight.
- Keep out of reach of children and pets.
- Do not use if the charger or cable is damaged.
- Ensure proper ventilation around the charger during use.
8. Warranty and Support
Warranty Information:
ASOMETECH products are designed for quality and reliability. This product typically comes with a warranty that covers manufacturing defects. Please refer to your purchase documentation for specific warranty terms and duration.
Returns and Refunds:
AliExpress offers a Free Returns within 90 days policy for eligible items. If you are not satisfied with your order, you may be able to return it for a refund. Please check the AliExpress platform for detailed return instructions.
Fast Delivery Guarantee:
This product is eligible for fast delivery. In case of delayed delivery, you may be eligible for a $1.00 coupon code. Refunds are also available if the package is lost or items are damaged during transit, or if there is no delivery within 60 days.
Customer Support:
For any questions, technical assistance, or warranty claims, please contact the ASOMETECH Accessories Store directly through the AliExpress platform. Provide your order number and a detailed description of the issue for prompt support.





