1. Product Overview
The Mcdodo 140W USB-C to MagSafe 3 Adapter is designed to provide efficient and convenient charging for compatible MacBook models. This compact adapter converts a USB-C power delivery connection to a MagSafe 3 magnetic connection, supporting up to 140W fast charging.
Key Features:
- Portable & Loss-Proof: Compact design (0.8*0.81*0.31 inches) with a built-in lanyard for easy portability and to prevent loss.
- 140W PD Charging: Supports up to 140W Power Delivery for rapid laptop charging.
- LED Indicator Light: Displays charging status (orange for charging, green for fully charged).
- Strong Magnetic Connector: Ensures a secure connection to your MacBook.
- Durable Construction: Made from high-grade aluminum alloy for anti-oxidation, rustproof, and corrosion-resistant properties.

2. Package Contents
Verify that all items are present in your package:
- Mcdodo 140W USB-C to MagSafe 3 Adapter (1 unit)
3. Specifications
| Feature | Detail |
|---|---|
| Model Number | OT-6850 |
| Brand | mcdodo |
| Connector Type | MagSafe 3, USB-C |
| Wattage | 140 watts |
| Item Weight | 0.634 ounces (0.02 Kilograms) |
| Package Dimensions | 4.13 x 3.54 x 0.75 inches |
| Special Feature | Magnetic |
4. Compatibility
This adapter is designed exclusively for Apple MacBook models equipped with a MagSafe 3 charging port. It is not compatible with MagSafe 1 or MagSafe 2 ports, or MacBook models from 2020 and earlier.
Compatible MacBook Models:
- MacBook Air: M2 (2022, 2023 - 13/15 inch), M3 (2024 - 13/15 inch), M4 (2025 - 13/15 inch)
- MacBook Pro: M1 (2021 - 14/16 inch), M2 (2023 - 14/16 inch), M3 (2023 - 14/16 inch), M4 (2024 - 14/16 inch), M5 (2025 - 14/16 inch)


5. Setup Instructions
Follow these steps to set up your Mcdodo 140W USB-C to MagSafe 3 Adapter:
- Connect USB-C Cable: Insert your USB-C charging cable into the USB-C port on the Mcdodo adapter. Ensure the cable is capable of delivering the desired wattage (e.g., 140W for maximum speed).
- Attach to MacBook: Align the magnetic end of the Mcdodo adapter with the MagSafe 3 port on your MacBook. The magnetic connection will securely attach the adapter.
- Connect Power Source: Plug the other end of your USB-C charging cable into a compatible USB-C power adapter (not included) and then into a wall outlet.

6. Operating Instructions
Once connected, the adapter will begin charging your MacBook. The built-in LED indicator provides visual feedback on the charging status:
- Orange Light: Indicates that your MacBook is actively charging.
- Green Light: Indicates that your MacBook is fully charged.

7. Maintenance
To ensure the longevity and optimal performance of your Mcdodo adapter, follow these maintenance guidelines:
- Cleaning: Gently wipe the adapter with a soft, dry cloth to remove dust or debris. Avoid using liquid cleaners or abrasive materials.
- Storage: Store the adapter in a cool, dry place when not in use. The built-in lanyard can be used to secure it to a bag or other item to prevent misplacement.
- Handle with Care: Avoid dropping the adapter or subjecting it to excessive force, which could damage internal components or the magnetic connector.

8. Troubleshooting
If you encounter issues with your Mcdodo 140W USB-C to MagSafe 3 Adapter, refer to the following common solutions:
- Adapter Not Charging:
- Ensure both the USB-C cable and the power adapter are fully functional and capable of delivering sufficient power (e.g., 140W for optimal performance).
- Verify that the MagSafe 3 connector is clean and free of debris.
- Confirm that the adapter is securely attached to the MacBook's MagSafe 3 port.
- Weak Magnetic Connection:
- Ensure the MagSafe 3 port on your MacBook is clean.
- Avoid placing the MacBook in positions where the cable might be strained or pulled, as this can dislodge the magnetic connection.
- LED Indicator Not Lighting Up:
- Check all connections from the wall outlet to the MacBook.
- Try a different USB-C cable or power adapter to rule out issues with those components.
If problems persist, please contact Mcdodo customer support for further assistance.
9. Warranty and Support
For warranty information and customer support, please refer to the official Mcdodo website or contact their customer service department. Keep your purchase receipt for warranty claims.





