1. Introduction
This manual provides detailed instructions for the safe and efficient use of your ASOMETECH 140W GaN Charger. Please read this manual thoroughly before using the product and retain it for future reference.
Image: ASOMETECH 140W GaN Charger with various plug types.
2. Product Features
- High Power Output: Up to 140W maximum power.
- GaN Technology: Utilizes advanced Gallium Nitride (GaN) technology for a compact and efficient design.
- Multiple Ports: Equipped with 2 USB Type-C ports and 1 USB-A port for simultaneous charging.
- Advanced Fast Charging Protocols: Supports PD3.1, PPS, QC4.0, QC3.0, FCP, SCP, AFC, Samsung 2A, Samsung Adaptive Fast Charge, Huawei FCP, USB PD, BC1.2, Qualcomm Quick Charge, Huawei Quick Charge.
- Compact Design: Approximately 22.8% smaller than traditional 140W chargers.
- Multiple Security Protections: Includes overcurrent, overvoltage, short-circuit, over-temperature, overpower, anti-interference, lightning strike, and shell flame retardant protection.
Image: Overview of charger features including 3 ports, 140W power, PD3.1, GaN technology, and multiple security protections.
3. Package Contents
Please check the package for the following items:
- ASOMETECH 140W GaN Charger
- User Manual (this document)
- (Optional, depending on purchase) Charging cable(s)
4. Setup and Connection
- Select the Correct Plug Type: The charger is available with EU, US, or UK plug types. Ensure you have the correct version for your region.
Image: Available plug types (EU, US, UK).
- Connect to Power Outlet: Insert the charger's plug firmly into a compatible AC 110-240V~50/60Hz wall socket.
- Connect Your Device: Use a suitable charging cable (USB-C to USB-C or USB-A to device) and connect it to one of the charger's output ports (USB-C1, USB-C2, or USB-A).
5. Operating Instructions
5.1. Charging Protocols and Power Output
The charger supports various fast charging protocols and dynamically adjusts power output based on connected devices and ports in use.
- USB-C1/C2 Output:
- PD3.1: 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/5A, 28V/5A (140W Max)
- PPS: 5V-11V/4.05A (44.5W Max)
- Supports FCP, SCP, AFC, QC3.0, Samsung 2A, 100W, 65W, 47W, 45W, 35W, 33W, 25W, 20W, 18W PD3.0/PD3.1/PPS.
- USB-A Output:
- 5V/3A, 9V/2A, 12V/1.5A (QC3.0 18W Max)
- Supports DCP, Samsung 2A, FCP, AFC, QC2.0, QC3.0.
5.2. Multi-Port Charging Power Distribution
The charger has a total maximum output of 140W. When multiple devices are connected, the power is intelligently distributed among the ports as follows:
- Single Port Charging:
- USB-C1 or USB-C2: Up to 140W (for compatible devices like MacBook Pro 16 2021).
- USB-A: Up to 18W.
Image: Single-port charging power guide.
- Dual Port Charging:
- USB-C1 + USB-C2: 65W + 65W (Total 130W). Each C port output: DC5V,9V,12V,15V,3A / 20V,3.25A (PD3.0 65W), PPS:5-11V/4.05A.
- USB-C1 or C2 + USB-A: 100W + 18W (Total 118W). C port output: DC5V,9V,12V,15V,3A /20V,5A (PD3.0 100W), PPS:5-11V/4.05A. USB-A output: DC5V,3A/9V,2A/12V,1.5A (QC3.0 18W).
Image: Dual and three-port charging power distribution diagrams.
- Three Port Charging (C1 + C2 + A1):
- 65W + 47W + 18W (Total 130W Max).
Image: Example of 3-port simultaneous fast charging.
5.3. Compatibility
The charger is compatible with a wide range of devices, including but not limited to:
- Laptops: MacBook Pro 16 2021, MacBook Pro 16"/13", MacBook Air 2023, and other USB-C PD compatible laptops.
- Tablets: iPad Pro 10.5"/11"/12.9", iPad Air 3, iPad mini 5/6.
- Smartphones: iPhone 14 Pro Max, iPhone 14/14 Plus, iPhone 13 Pro Max/13/12/11 series, Huawei, Samsung, OnePlus, Xiaomi, OPPO.
- Other Devices: Nintendo Switch, Apple Watch Series 8/SE/Ultra, AirPods Pro, HomePod mini.
Image: Compatibility with Apple devices.
Image: Compatibility with Android phones and other peripherals.
5.4. Important Safety Notes
- This product does not support Xiaomi 120W fast charging.
- 140W PD3.1 fast charging is only supported by devices with the PD3.1 fast charging protocol and requires a charging cable that also supports 140W PD3.1 fast charging.
- When charging multiple devices simultaneously, the maximum combined output power is 110W. Please do not overload the charger beyond this limit.
- The charger may become warm during operation, especially when charging multiple devices simultaneously or at high power. This is normal. If it becomes excessively hot or emits smoke/unusual odors, disconnect it immediately and contact support.
- The pictures in this manual are for reference only; the actual product design may vary slightly.
6. Maintenance and Care
- Keep the charger away from water, fire, and high temperatures.
- Do not disassemble, modify, or repair the charger yourself.
- Clean the charger with a soft, dry cloth. Do not use liquid cleaners.
- Store the charger in a cool, dry place when not in use.
7. Troubleshooting
- Device not charging:
- Ensure the charger is properly plugged into a working power outlet.
- Check if the charging cable is securely connected to both the charger and your device.
- Try a different charging cable or port.
- Verify that your device is compatible with the charger's output specifications.
- Slow charging:
- Ensure your device and cable support fast charging protocols (e.g., PD3.1, QC3.0) to achieve optimal speeds.
- When multiple devices are connected, the power is distributed, which may result in slower charging for individual devices compared to single-port charging.
- Some devices may limit charging speed if they are too hot or too cold.
- Charger feels warm:
- It is normal for the charger to become warm during high-power or multi-device charging. If it becomes excessively hot or emits smoke/unusual odors, disconnect it immediately and contact support.
If you encounter issues not covered here or require further assistance, please contact ASOMETECH customer support.
8. Specifications
| Feature | Detail |
|---|---|
| Product Name | 140W PD3.1 GaN Charger |
| Brand | ASOMETECH |
| Model | PST-140UC2-LB |
| Input | AC110-240V~50/60Hz |
| Output Ports | 2 x USB Type-C, 1 x USB-A |
| Max. Output Power | 140W |
| GaN Technology | Yes |
| Intelligent Charge | Yes |
| Display Screen | No |
| Dimensions (approx.) | 80mm (H) x 64mm (W) x 31mm (D) |
| Certifications | CE, ROHS, FCC, UL, CB, EMC |
Image: Product dimensions.
Image: Product certification logos.
9. User Tips
- For optimal 140W PD3.1 fast charging, ensure both your device and the charging cable explicitly support the PD3.1 protocol. Using a non-PD3.1 cable or device will result in lower charging speeds.
- To maintain an organized desktop and avoid clutter, utilize the multi-port capabilities of this charger instead of multiple single-port chargers.
Image: Organized desktop with the ASOMETECH charger.
- The compact design of this charger helps save socket space, making it ideal for travel or crowded power strips.
Image: Charger's space-saving design.
10. Warranty and Support
For warranty information or technical support, please contact the ASOMETECH customer service team through your purchase platform or the official ASOMETECH website. Please have your product model (PST-140UC2-LB) and purchase details ready when contacting support.
