Product Overview
The KEXIN 128GB USB C Flash Drive is a versatile storage device featuring dual connectors: a USB Type-C port and a USB 3.0 port. This design allows for broad compatibility with various devices, including Type-C enabled Android smartphones, tablets, and traditional USB 3.0/2.0 compatible computers and laptops. Its compact, metal body is designed for durability, offering waterproof, shockproof, magnet-proof, temperature-proof, and X-ray-proof characteristics. The drive also features a 360-degree rotating design for convenience and protection of the connectors.

Figure 1: KEXIN 128GB USB C Flash Drive, showcasing its dual connector design and compact form factor.
Setup and Connection
The KEXIN USB C Flash Drive is designed for plug-and-play functionality, requiring no additional drivers for most operating systems. Ensure your device meets the compatibility requirements before connecting.
Connecting to USB Type-C Devices (Smartphones/Tablets)
- OTG Functionality: For use with smartphones and tablets, your device must support USB On-The-Go (OTG) functionality. Verify this in your device's settings or specifications.
- Connection: Insert the USB Type-C connector of the flash drive into the Type-C port of your smartphone or tablet.
- Accessing Files: Once connected, your device should automatically detect the flash drive. You can typically access its contents through a file manager application.

Figure 2: The dual USB-C and USB 3.0 flash drive connected to both a smartphone and a laptop, demonstrating its versatile connectivity.
Connecting to USB 3.0/2.0 Devices (Computers/Laptops)
- Connection: Insert the USB 3.0 connector of the flash drive into an available USB 3.0 or USB 2.0 port on your computer or laptop.
- Detection: The operating system will typically recognize the drive automatically. It will appear as a removable disk in "My Computer" (Windows) or "Finder" (macOS).
Operating Instructions
Using the KEXIN USB C Flash Drive for data transfer is straightforward. The drive supports high-speed data transfer thanks to its USB 3.0 interface.
Data Transfer
- Copying Files TO the Drive: Drag and drop files or folders from your computer/device to the flash drive's folder. Alternatively, right-click on the desired files/folders, select "Copy," navigate to the flash drive, right-click, and select "Paste."
- Copying Files FROM the Drive: Drag and drop files or folders from the flash drive's folder to your computer/device. Alternatively, right-click on the desired files/folders on the flash drive, select "Copy," navigate to your desired destination on your computer/device, right-click, and select "Paste."

Figure 3: Illustration of the drive's ultra-fast transfer speeds, capable of transferring a HD movie in approximately 30 seconds. Typical read speeds are 100-130 MB/s and write speeds are 25-35 MB/s.
Safe Removal
Always safely eject the flash drive before physically removing it from your device to prevent data corruption.
- Windows: Click the "Safely Remove Hardware and Eject Media" icon in the system tray, then select the flash drive.
- macOS: Drag the flash drive icon from the desktop to the Trash, or click the Eject button next to the drive in Finder.
- Android: Go to Storage settings, find the USB drive, and tap "Eject" or "Unmount."
Maintenance and Care
To ensure the longevity and optimal performance of your KEXIN USB C Flash Drive, follow these maintenance guidelines:
- Physical Protection: The drive features a durable metal body and is designed to be waterproof, shockproof, magnet-proof, temperature-proof, and X-ray-proof. While robust, avoid exposing it to extreme conditions or excessive force.
- Cleaning: If necessary, gently wipe the exterior of the drive with a soft, dry cloth. Do not use liquid cleaners or solvents.
- Storage: When not in use, store the drive in a clean, dry place away from direct sunlight and extreme temperatures. The compact size makes it easy to carry in a wallet or attached to a lanyard.
- Connector Care: The 360-degree rotating design helps protect the connectors. Ensure the connectors are clean and free of debris before insertion.

Figure 4: Key durability features of the KEXIN USB C Flash Drive, highlighting its resistance to water, shock, magnetic fields, extreme temperatures, and X-rays.
Troubleshooting
If you encounter issues with your KEXIN USB C Flash Drive, consider the following common solutions:
- Drive Not Recognized:
- Ensure the drive is fully inserted into the USB port.
- Try a different USB port on your computer or device.
- If using with a smartphone/tablet, confirm your device supports OTG functionality.
- Restart your computer or device.
- Check Device Manager (Windows) or System Information (macOS) to see if the drive is detected but not assigned a drive letter.
- Slow Transfer Speeds:
- Ensure you are connected to a USB 3.0 port for optimal speeds. USB 2.0 ports will result in slower transfers.
- Large numbers of small files can transfer slower than a single large file of the same total size.
- Close other applications that might be using system resources.
- Formatting Issues:
- The default format of the drive is EXFAT, which offers broad compatibility across different operating systems (Windows, macOS, Linux, Android).
- If you need to reformat the drive, ensure you select a compatible file system (e.g., EXFAT for cross-platform use, NTFS for Windows-only, HFS+ for macOS-only). Be aware that formatting will erase all data on the drive.
- Data Corruption:
- Always safely eject the drive before removing it to prevent data corruption.
- If data appears corrupted, try running a disk check utility on your computer.
Specifications
| Feature | Detail |
|---|---|
| Brand | KEXIN |
| Model Name | U22 |
| Item Model Number | U22-Black-128GB |
| Memory Storage Capacity | 128 GB |
| Hardware Interface | USB 3.0, USB Type-C |
| Read Speed | Up to 100-130 MB/s |
| Write Speed | Up to 25-35 MB/s |
| Product Dimensions | 1.28"L x 0.6"W x 0.26"H |
| Item Weight | 0.212 ounces |
| Special Features | Waterproof, Shockproof, Magnet-proof, Temperature-proof, X-ray-proof |
| Compatible Phone Models | Google Pixel XL (and other Type-C OTG enabled devices) |
| UPC | 763230622434 |
Warranty and Support
KEXIN is committed to providing high-quality products and customer satisfaction. While specific warranty details are not provided in this manual, KEXIN offers outstanding customer service.
For technical support, warranty claims, or any product-related inquiries, please contact KEXIN customer service through the retailer where you purchased the product or visit the official KEXIN brand store online.
Online Support: KEXIN Official Store on Amazon





