Product Overview
The HEYMIX 75W Universal Travel GaN Adapter (Model: JY-309MAX) is a versatile and compact charging solution designed for international travel. It integrates multiple plug types and offers high-speed charging through its USB-C and USB-A ports, powered by GaN technology for efficient power delivery. This adapter is engineered to provide a safe and convenient charging experience for a wide range of electronic devices across over 150 countries.

Image: The HEYMIX 75W Universal Travel GaN Adapter, showcasing its compact design, multiple USB ports, and the included 100W USB-C cable. Various international plug types are also visible at the top.
Setup and Initial Use
Before using your HEYMIX Universal Travel GaN Adapter, ensure you understand the correct plug type for your destination and the power requirements of your devices. This adapter is designed for convenience and broad compatibility.
1. Selecting the Correct Plug
The adapter features integrated plug types for various regions. To deploy the correct plug:
- USA/AUS Plug (Type A/I): Slide the lever marked "USA/AUS" to extend the prongs.
- UK Plug (Type G): Slide the lever marked "UK" to extend the prongs.
- EU Plug (Type C/E/F): Slide the lever marked "EU" to extend the prongs.

Image: Detailed view of the adapter's retractable prongs for UK, EU, USA, and AUS outlets, demonstrating its all-in-one design.
2. Connecting Your Devices
The adapter provides one universal AC output socket and multiple USB ports for charging. It supports simultaneous charging of up to six devices (1 AC + 3 USB-C + 2 USB-A).
- AC Output: Insert your device's power plug into the universal AC socket on the front of the adapter.
- USB-C Ports (C1, C2, C3): Connect your USB-C compatible devices using a USB-C to USB-C cable or USB-C to Lightning cable.
- USB-A Ports (A1, A2): Connect your USB-A compatible devices using a standard USB-A cable.

Image: The HEYMIX adapter in use, demonstrating its ability to charge multiple devices including a laptop, smartphone, smartwatch, and camera, highlighting its 6-in-1 functionality.
Important Note: This adapter does not convert voltage. Ensure your devices are compatible with the local voltage (110V-230V). The adapter supports 1100W at 110V and 2300W at 230V (10A Max).
Operating Instructions
The HEYMIX 75W Universal Travel GaN Adapter is designed for efficient and safe charging of a wide array of devices, including smartphones, tablets, laptops, and other USB-powered gadgets.
Power Output Specifications:
- Total Output: 75W Max
- USB-C1/C2 Output: 5V-3A, 9V-3A, 12V-3A, 15V-3A, 20V-3.25A (65W Max)
- USB-C3 Output: 5V-3A, 9V-2.22A, 12V-1.67A (20W Max)
- USB-A1/A2 Output: 5V-2.4A (12W Max)
- PPS Support: 3.3-11V-5A (45W Max)
- Combined Output:
- C1+C2: 45W+30W
- C1+C3: 45W+20W
- C2+C3: 45W+20W
- C1+A1/A2: 65W+12W
- C2+A1/A2: 65W+12W
- C3+A1/A2: 20W+12W
- C1+C2+C3: 30W+20W+20W
- C1+C2+A1/A2: 30W+30W+12W
- C1+C3+A1/A2: 45W+15W+12W
- C2+C3+A1/A2: 45W+15W+12W
- C1+C2+C3+A1/A2: 30W+15W+15W+12W
The adapter intelligently distributes power across connected devices. For optimal charging, use high-quality cables and ensure your devices support the specified charging protocols (e.g., Power Delivery, PPS).

Image: The HEYMIX adapter demonstrating compatibility with a wide range of devices such as blenders, hair dryers, fans, and hair straighteners, emphasizing its versatility for high-power devices within its wattage limits.
Maintenance
Proper maintenance ensures the longevity and safe operation of your HEYMIX Universal Travel GaN Adapter.
General Care:
- Keep the adapter clean and dry. Avoid exposure to moisture or extreme temperatures.
- Do not drop or subject the adapter to strong impacts.
- When not in use, retract all plugs and store the adapter in a cool, dry place.
- Clean the exterior with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
Fuse Replacement:
The adapter is equipped with dual 10A fuses for enhanced safety, providing automatic power off in case of short circuit or overload. If the adapter stops working, one of the fuses may have blown.

Image: A visual comparison highlighting the dual 10A fuse protection of the HEYMIX adapter, contrasting it with adapters lacking such safety features.
To replace a fuse:
- Disconnect the adapter from the power outlet and all connected devices.
- Locate the fuse compartment, typically near the AC pins.
- Carefully open the fuse compartment.
- Remove the blown fuse and replace it with a new 10A fuse (BS1362 standard). A spare fuse is usually included.
- Close the fuse compartment securely.
- Reconnect the adapter and test its functionality.
If the issue persists after fuse replacement, discontinue use and contact customer support.
Troubleshooting
If you encounter issues with your HEYMIX Universal Travel GaN Adapter, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Adapter not powering on/charging devices. |
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| Slow charging or inconsistent charging. |
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| Adapter feels warm during use. |
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If these solutions do not resolve the issue, please contact HEYMIX customer support for further assistance.
Specifications
Detailed technical specifications for the HEYMIX 75W Universal Travel GaN Adapter (Model: JY-309MAX).
| Feature | Detail |
|---|---|
| Brand | HEYMIX LIFE |
| Model Number | JY-309MAX |
| Product Dimensions | 8 x 5 x 5.3 cm |
| Item Weight | 230 g |
| Wattage | 75 Watts (Max) |
| Power Source | Corded Electric |
| Total USB Ports | 3 (USB-C) + 2 (USB-A) = 5 ports |
| AC Output | Universal Socket (10A Max) |
| Input Voltage Range | 100-240V AC (Adapter does not convert voltage) |
| Max Power Output | 1100W at 110V, 2300W at 230V |
| Compatible Devices | MP3 Players, Tablets, Headphones, Smartphones, Laptops, etc. |
| Special Features | Travel-ready, GaN Technology, Dual Fuses, Children Safety Door, Over-Current/Voltage/Short-Circuit Protection, Fire-Resistance Shell |
| Mounting Type | Wall Mount |
| Specification Met | FCC |
| Date First Available | 6 October 2023 |
Safety Information
Your HEYMIX Universal Travel GaN Adapter is built with multiple safety features to ensure secure operation:
- Dual Fuses: Equipped with two 10A fuses (BS1362 standard) for automatic power cut-off in case of short circuit or overload, protecting both the adapter and your devices.
- Children Safety Door: Prevents children from accessing the live parts of the socket, enhancing household safety.
- Comprehensive Protection: Includes built-in safeguards against over-current, over-voltage, and short-circuiting.
- Fire-Resistance Shell: Constructed with materials designed to resist fire, adding an extra layer of safety.

Image: A visual representation of the adapter's safety features, including the children safety door and the dual fuses, alongside icons indicating short-circuit, over-current, over-voltage, and fire-resistance protection.
Always ensure that the total wattage of devices connected does not exceed the adapter's maximum capacity (1100W at 110V, 2300W at 230V).
Warranty and Support
Specific warranty details for the HEYMIX 75W Universal Travel GaN Adapter (Model: JY-309MAX) are not provided in this manual. For information regarding warranty coverage, terms, and conditions, please refer to the product packaging or the official HEYMIX LIFE website.
Customer Support:
If you require technical assistance, have questions about product functionality, or need to report an issue, please contact HEYMIX LIFE customer support through their official channels. Contact information can typically be found on the product packaging or the manufacturer's website.
When contacting support, please have your product model number (JY-309MAX) and purchase details ready.





