1. Introduction
The UGREEN USB-C to USB 3.0 OTG Adapter Cable is designed to expand the connectivity of your USB-C enabled devices. This adapter allows you to connect standard USB-A peripherals to your laptop, tablet, or smartphone, facilitating high-speed data transfer and versatile usage.

Image: UGREEN USB-C to USB 3.0 OTG Adapter Cable, showcasing its compact design.
2. Features
- USB Type-C OTG Adapter: Connects USB-A peripherals such as external HDDs, USB memory sticks, mice, keyboards, game controllers, and card readers to a wide range of USB-C devices including laptops, tablets, and smartphones.
- 5Gbps High-Speed Data Transfer: Compliant with USB 3.0 standard, offering data transfer speeds approximately 10 times faster than USB 2.0. Large files can be transferred in seconds. Backward compatible with USB 2.0/1.0.
- Non-Interfering Design: The 15cm length (including connectors) is designed to prevent interference with adjacent ports, allowing flexible placement. Features an easy-to-grip, anti-slip design for simple plugging and unplugging.
- Stable Transmission and High Durability: Features a triple-shielded premium cable for maximum conductivity and stable signal transmission. The durable nylon braided material offers both wear and corrosion resistance, having passed over 10,000 plug/unplug tests.
- Direct Access via OTG: Enables OTG-enabled USB-C devices like smartphones and tablets to directly access data on USB memory sticks, in addition to PCs.

Image: Visual representation of 5Gbps data transfer speed compared to USB 2.0.

Image: Close-up of the adapter highlighting its smart chip, aluminum alloy casing, and nylon braided cable for durability.
3. Setup
- Locate the USB-C port on your host device (laptop, tablet, or smartphone).
- Connect the USB-C male connector of the UGREEN adapter into the USB-C port of your host device. Ensure it is fully inserted.
- Connect your desired USB-A peripheral (e.g., USB flash drive, mouse, keyboard) into the USB 3.0 female port of the UGREEN adapter.

Image: The adapter connected to a laptop, demonstrating its design that avoids interfering with adjacent ports.
4. Operating Instructions
Once the adapter and peripheral are connected, your USB-C host device should automatically detect and recognize the connected USB-A device. No additional drivers are typically required.
- For Data Transfer: Access the connected storage device (e.g., USB flash drive, external HDD) through your device's file manager or 'My Computer' (on PCs). You can then transfer files as you normally would.
- For Input Devices: A connected mouse or keyboard should function immediately upon connection, allowing you to control your device.
- For Game Controllers: Connect your USB game controller to enjoy gaming on your compatible smartphone or tablet.

Image: A user typing on a keyboard connected to a tablet via the UGREEN USB-C OTG adapter.

Image: A user playing a game with a controller connected to a smartphone using the UGREEN USB-C OTG adapter.
5. Compatibility
This adapter is compatible with a wide range of devices and peripherals:
- USB-C Host Devices: iPhone 15 Pro Max, MacBook Pro, MacBook Air, iPad Pro, Xperia XZ, Galaxy S10, and other smartphones, tablets, and laptops equipped with a USB-C port that supports OTG functionality.
- USB-A Peripherals: External hard drives, USB flash drives, mice, keyboards, game controllers, card readers, and other USB 3.0/2.0/1.0 devices.

Image: Diagram illustrating the broad compatibility of the UGREEN USB-C OTG adapter with different USB-C host devices and USB-A peripherals.
6. Specifications
| Brand | UGREEN |
| Model Number | 70889 |
| Connector Type | USB Type-C (Male) to USB 3.0 (Female) |
| Data Transfer Speed | Up to 5Gbps (USB 3.0) |
| Cable Length | 15 cm |
| Color | Space Gray |
| Finish | Metallic |
| Product Dimensions (LxWxH) | 14.5 x 8.3 x 0.9 cm |
| Item Weight | 14 g |
7. Maintenance
To ensure the longevity and optimal performance of your UGREEN USB-C to USB 3.0 OTG Adapter Cable, please follow these maintenance guidelines:
- Keep the adapter clean and dry. Use a soft, dry cloth to wipe off any dust or debris.
- Avoid bending the cable excessively or at sharp angles, as this can damage the internal wires.
- Do not expose the adapter to extreme temperatures, direct sunlight, or high humidity.
- Store the adapter in a cool, dry place when not in use.
- Avoid pulling the cable to disconnect; always grasp the connector housing firmly.

Image: The compact adapter being easily stored in a laptop bag, highlighting its portability.
8. Troubleshooting
If you encounter issues with your UGREEN USB-C to USB 3.0 OTG Adapter Cable, please refer to the following common solutions:
- Device Not Recognized:
- Ensure both the USB-C connector and the USB-A peripheral are securely and fully inserted into their respective ports.
- Try connecting the USB-A peripheral directly to another device (if possible) to confirm the peripheral is functioning correctly.
- Restart your host device (laptop, tablet, or smartphone).
- Verify that your USB-C host device supports OTG (On-The-Go) functionality, especially for smartphones and tablets.
- Slow Data Transfer Speed:
- Ensure both your host device's USB-C port and the connected USB-A peripheral support USB 3.0 for optimal 5Gbps speeds.
- If either the host port or the peripheral is USB 2.0 or 1.0, data transfer will operate at the slower speed of the connected device.
9. Warranty and Support
This UGREEN product is covered by a 24-month warranty from the date of purchase. This warranty ensures that your product is free from defects in material and workmanship under normal use.
Please Note: The warranty does not cover damage resulting from intentional misuse by the customer or third parties. Any unauthorized modifications or repairs will void the warranty.
For technical support, warranty claims, or any inquiries regarding your product, please contact UGREEN customer service through the retailer where you purchased the product or visit the official UGREEN website for contact information.
10. Product Video
Video: An official UGREEN video demonstrating the features and usage of the USB-C OTG Adapter Cable, including its 5Gbps data transfer capability, OTG function, and compatibility with various devices and peripherals.





