1. Product Overview
The UGREEN USB C to USB 3.0 Micro B Cable is designed to connect devices with a USB Type-C port to devices equipped with a USB 3.0 Micro-B port. This cable facilitates high-speed data transfer and efficient power delivery, making it ideal for connecting external hard drives, cameras, smartphones, and tablets to modern computers and laptops.

Image: The UGREEN USB C to USB 3.0 Micro B Cable, featuring a USB-C connector on one end and a Micro-B 3.0 connector on the other, both branded with UGREEN.
2. Key Features
- USB-C to Micro-B 3.0 Connectivity: Enables direct connection between USB Type-C host devices (e.g., MacBook Pro, Google Chromebook Pixel, Dell XPS) and Micro-B USB 3.0 peripheral devices (e.g., external hard drives, cameras, smartphones, tablets).
- Fast Charging & Syncing: Complies with USB 3.1 Type C and USB 3.0 Micro-B standards, supporting data transmission rates up to 5Gbps. This allows for rapid transfer of large files, such as 1GB video in seconds. It also supports a 5V/3A (15W) power output for efficient charging and stable file transfers.
- Enhanced Durability: Constructed with high-quality PVC material and features well-built connectors with over-molded strain relief. This design contributes to increased durability for daily use. Internal pure copper conductors, along with foil and braid shielding, ensure superior data transmission and fast charging performance.
- Reversible Design: The USB Type-C connector is reversible, allowing for easy and convenient insertion into any compatible Type-C enabled device.

Image: The UGREEN USB C to Micro B 3.0 cable connected to an external hard drive and a laptop, illustrating simultaneous data syncing at 5Gbps and charging capabilities.

Image: A cross-section diagram of the UGREEN cable, highlighting its internal components including tinned copper wire, aluminum foil, GND, braid, and protective PVC for stable signal transmission.
3. Compatibility
This cable offers broad compatibility with a variety of devices:
- USB Type-C Host Devices: Compatible with computers, laptops, tablets, PD chargers, and power banks featuring a USB Type-C port or Thunderbolt 3 port, such as MacBook Pro, Google Chromebook Pixel, and Dell XPS models.
- Micro-B USB 3.0 Devices:
- External Hard Drives: Seagate Expansion 2TB/Backup Plus, WD My Passport, WD 1TB Elements, Toshiba 3TB Canvio Basics, KESU Ultra Slim, LaCie Rugged Mini, Maxtor M3, Samsung M3 SSD, Integral Portable SSD.
- Smartphones & Tablets: Samsung Galaxy S5/Note 3, Nokia Lumia 2520.
- Cameras: Nikon D800/D800E, Canon EOS 5DS/5DSR/5D4.

Image: A visual representation of the UGREEN cable's compatibility with various Micro USB 3.0 devices, including external hard drives, smartphones, and cameras.

Image: The UGREEN cable positioned in front of various USB Type-C and Thunderbolt 3 compatible devices, such as laptops, desktops, and tablets, indicating broad host device compatibility.
4. Setup Instructions
Connecting the UGREEN USB C to USB 3.0 Micro B Cable is a straightforward process:
- Identify the USB Type-C port on your host device (e.g., laptop, computer).
- Identify the USB 3.0 Micro-B port on your peripheral device (e.g., external hard drive, camera).
- Insert the USB Type-C connector of the cable into the USB Type-C port on your host device. The reversible design allows for easy insertion in any orientation.
- Insert the USB 3.0 Micro-B connector of the cable into the corresponding port on your peripheral device. Ensure a firm and secure connection.
- Once connected, your devices should recognize each other, and you can begin data transfer or charging.

Image: A UGREEN USB C to Micro B 3.0 cable connecting an external hard drive to a laptop, demonstrating a simplified direct connection without the need for adapters.

Image: A close-up view of the UGREEN Micro B 3.0 connector securely plugged into an external hard drive, emphasizing a solid and stable connection for reliable data transfer.
5. Operating Instructions
Once the cable is securely connected between your host and peripheral devices, it will function automatically for data transfer and charging:
- Data Transfer: For external hard drives, cameras, or smartphones, the connected device should appear as a removable storage device on your computer. You can then drag and drop files, copy, or move data as you would with any other connected storage. The cable supports data transfer speeds of up to 5Gbps.
- Charging: When connected to a compatible power source (e.g., a laptop's USB-C port or a USB-C wall charger), the cable will provide power to the connected Micro-B device. It supports a power output of 5V/3A (15W), ensuring efficient charging for compatible devices.
No additional drivers or software are typically required for the cable itself, as it utilizes standard USB protocols.
6. Maintenance and Care
To ensure the longevity and optimal performance of your UGREEN USB C to USB 3.0 Micro B Cable, follow these care guidelines:
- Avoid Extreme Bending: While the cable features enhanced durability and strain relief, excessive or sharp bending, especially near the connectors, should be avoided to prevent internal wire damage.
- Proper Storage: When not in use, coil the cable loosely. Avoid tightly wrapping it or knotting it, which can stress the internal conductors.
- Keep Clean and Dry: Store the cable in a clean, dry environment. Avoid exposure to moisture, extreme temperatures, or direct sunlight.
- Handle Connectors Carefully: Always grasp the connector housing when plugging or unplugging the cable. Avoid pulling directly on the cable itself, as this can damage the connection points.
- Inspect Regularly: Periodically check the cable and connectors for any signs of wear, fraying, or damage. If damage is observed, discontinue use.
7. Troubleshooting
If you encounter issues with your UGREEN USB C to USB 3.0 Micro B Cable, consider the following troubleshooting steps:
- Device Not Recognized:
- Ensure both ends of the cable are securely plugged into their respective ports.
- Try connecting the cable to a different USB-C port on your host device.
- Test the cable with a different compatible peripheral device to rule out an issue with the original device.
- Restart your host device (computer/laptop).
- Slow Data Transfer:
- Verify that both your host device's USB-C port and your peripheral device's Micro-B port support USB 3.0 speeds. Older USB 2.0 ports will operate at slower speeds.
- Ensure no other high-bandwidth operations are running on your computer that might be consuming resources.
- Check the health of your external hard drive or storage device.
- No Charging:
- Confirm that your host device or power adapter is providing sufficient power output via its USB-C port.
- Ensure the peripheral device is capable of being charged via its Micro-B 3.0 port.
- Physical Damage: Inspect the cable for any visible damage, such as cuts, kinks, or bent connectors. If damaged, replace the cable.
8. Specifications
| Attribute | Detail |
|---|---|
| Brand | UGREEN |
| Model Number | 20103 |
| Connector Type | USB Type C to USB 3.0 Micro B |
| Cable Type | Type-C, Micro USB |
| Data Transfer Rate | Up to 5 Gigabits Per Second (5Gbps) |
| Power Output | 5V/3A (15 Watts) |
| Maximum Voltage | 5 Volts |
| Outer Material | Polyvinyl Chloride (PVC) |
| Color | Black |
| Item Weight | 1.41 ounces (40 Grams) |
| Product Dimensions | 0.24 x 5.31 x 7.64 inches |
| Number of Items | 1 |
| Indoor/Outdoor Usage | Indoor |
9. Warranty and Support
UGREEN products are designed for reliability and performance. For information regarding warranty coverage, technical support, or customer service, please refer to the official UGREEN website or contact UGREEN customer support directly.
You can visit the UGREEN store for more products and support information: UGREEN Official Store