Introduction
This manual provides detailed instructions for the JSL JDTDC 128GB MFi Certified 3-in-1 USB Flash Drive (Model JD005). This device is designed to expand storage and facilitate data transfer between various devices, including iPhones, iPads, Android phones, and computers.
Product Overview
The JSL JDTDC 3-in-1 USB Flash Drive features Lightning, USB-C, and USB-A connectors, offering broad compatibility. It is Apple MFi certified, ensuring reliable performance with iOS devices. The drive provides high-speed data transfer for efficient management of your digital content.

Image of the JSL JDTDC 128GB 3-in-1 USB Flash Drive, silver in color, with its protective caps removed, showcasing the Lightning, USB-C, and standard USB-A connectors. The drive has "JDTDC" and "128 GB EJW" printed on its body.

Graphic illustrating the JSL JDTDC 3-in-1 USB Flash Drive's three connector types: Lightning for iOS, Type-C for Android, and USB 3.0 for PC, emphasizing its Apple MFi certification and versatile connectivity.
Setup
1. App Installation (for iOS Devices)
For iPhone and iPad devices, the "JD Memory" application is required for proper functionality. This app facilitates file management, backup, and encryption features.
- Search for "JD Memory" in the Apple App Store.
- Download and install the application.
- Grant necessary permissions when prompted upon first use.
2. Connecting the Device
- For iPhone/iPad (Lightning Port): Connect the Lightning connector of the flash drive directly into your iPhone or iPad's Lightning port. The "JD Memory" app should launch automatically or prompt you to open it.
- For iPhone 15 Series/iPad/Android Phones (USB-C Port): Connect the USB-C connector of the flash drive into your device's USB-C port. For Android devices, no specific app is typically required; the device will recognize it as external storage.
- For PC/Mac (USB-A Port): Connect the USB-A connector into an available USB port on your computer. The drive will appear as a removable storage device. No additional software is required for computers.
Operating Instructions
1. One-Click Backup
The "JD Memory" app for iOS devices offers a one-click backup function to quickly save photos, videos, and contacts from your device to the flash drive.
- Connect the flash drive to your iPhone or iPad.
- Open the "JD Memory" app.
- Navigate to the backup section and select the "One-Click Backup" option.
- Confirm the backup process.

Image showing the JSL JDTDC flash drive connected to a smartphone, with icons representing photos, videos, and music, and text indicating estimated storage capacities and features like photo/video capture, media playback, file management, and contact backup.
2. File Transfer
You can transfer various file types, including photos, videos, music, and documents, between your device and the flash drive.
- From Device to Flash Drive: Within the "JD Memory" app (for iOS) or file manager (for Android/PC), select the files you wish to transfer and choose to copy or move them to the flash drive.
- From Flash Drive to Device: Similarly, select files on the flash drive and copy or move them to your device's internal storage.

Image displaying the JSL JDTDC flash drive connected to a smartphone, with a list of supported file formats for videos (e.g., avi, mp4), documents (e.g., doc, pdf), and music (e.g., aac, mp3).
3. Direct Media Playback
The flash drive supports direct playback of videos and music files without needing to transfer them to your device's internal storage. This feature is useful for conserving device space.
For iOS, use the "JD Memory" app to browse and play media files stored on the drive. For Android and PC, use your device's native media player or file explorer.
4. In-App Camera Function (iOS)
The "JD Memory" app allows you to take photos and videos directly, saving them in real-time to the connected flash drive, bypassing your iPhone or iPad's internal storage.
- Connect the flash drive and open the "JD Memory" app.
- Access the camera function within the app.
- Capture photos or videos; they will be saved directly to the flash drive.

Image showing the JSL JDTDC flash drive connected to a smartphone, with text indicating that it directly saves photos and videos taken with the device to the drive, freeing up internal storage.
5. Encryption Function (iOS)
The "JD Memory" app provides an encryption feature to protect sensitive data stored on the flash drive. This adds a layer of security to your files.
- Connect the flash drive and open the "JD Memory" app.
- Navigate to the security or settings section within the app.
- Follow the on-screen instructions to set up encryption for your files.

Graphic illustrating the high read and write speeds of the JSL JDTDC flash drive for both Lightning (10-15MB/s write, 10-30MB/s read) and USB 3.0/Type-C (15-35MB/s write, 30-80MB/s read) connectors.
Compatibility
The JSL JDTDC 3-in-1 USB Flash Drive is designed for wide compatibility across various operating systems and devices.
- iOS Devices (iOS 9.0 or Above):
- iPhone 15 Series (USB-C)
- iPhone 14 Series, 13 Series, 12 Series, 11 Series, X, 8, 7, 6 (Lightning)
- iPad 5/6/7/8, iPad Air, iPad Pro series (Lightning or USB-C depending on model)
- Android Devices: Compatible with most Android phones featuring a USB-C port and OTG (On-The-Go) support.
- Computers:
- MacBook/PC with USB-A port (USB 3.0)
- MacBook/PC with USB-C port
Note: The Beta Version of iOS 16 is not supported.

Detailed compatibility chart for the JSL JDTDC flash drive, listing specific iPhone, iPad, PC/Mac, and Android models, and noting the requirement for the "JD Memory" app for iOS devices.
Maintenance
To ensure the longevity and optimal performance of your JSL JDTDC USB Flash Drive, follow these maintenance guidelines:
- Handle with Care: Avoid dropping the device or subjecting it to strong impacts.
- Protect Connectors: Always use the provided protective caps when the drive is not in use to prevent dust and damage to the connectors.
- Keep Dry: Avoid exposure to water or high humidity.
- Temperature: Store and operate the device within normal room temperatures. Avoid extreme heat or cold.
- Safe Removal: Always safely eject the flash drive from your computer before physically disconnecting it to prevent data corruption. For mobile devices, ensure no data transfer is active before removal.
Troubleshooting
If you encounter issues with your JSL JDTDC USB Flash Drive, refer to the following common solutions:
Device Not Recognized or Connecting
- Check Connection: Ensure the flash drive is fully and securely inserted into the correct port of your device.
- Restart Device: Disconnect the flash drive and restart your phone, tablet, or computer, then try connecting again.
- iOS App: For iPhone and iPad, confirm that the "JD Memory" app is installed and updated to the latest version. The drive requires this app to function.
- Compatibility: Verify that your device's operating system and model are listed as compatible. Note that iOS 16 Beta is not supported.
- Try Another Port/Device: Test the flash drive on a different USB port or another compatible device to determine if the issue is with the drive or the original device's port.
Slow Transfer Speeds
- File Size: Transferring many small files can be slower than transferring a few large files.
- Device Performance: The speed of your host device (phone, tablet, computer) can affect transfer rates.
- Connector Type: USB 3.0/Type-C offers faster speeds than Lightning. Ensure you are using the appropriate connector for optimal performance.
Drive Becomes Warm During Use
- It is normal for the flash drive to become slightly warm during extended use or heavy data transfer. If the device becomes excessively hot to the touch, disconnect it immediately and contact customer support.
Data Corruption or Loss
- Safe Ejection: Always safely eject the drive from computers and ensure no active transfers before disconnecting from mobile devices.
- Re-transfer: If files appear corrupted, try re-transferring them from the original source.
- Backup: Regularly back up important data to multiple locations to prevent loss.
"JD Memory" App Issues (iOS)
- Update App: Ensure the app is updated to the latest version from the App Store.
- Reinstall App: If issues persist, try uninstalling and reinstalling the "JD Memory" app.
- Permissions: Check that the app has all necessary permissions granted in your device settings.
Specifications
| Feature | Detail |
|---|---|
| Brand | JSL JDTDC |
| Model Number | JD005 |
| Memory Storage Capacity | 128 GB |
| Read Speed (USB 3.0/Type-C) | Up to 80 MB/s |
| Write Speed (USB 3.0/Type-C) | Up to 40 MB/s |
| Read Speed (Lightning) | Up to 15 MB/s |
| Write Speed (Lightning) | Up to 10 MB/s |
| Connectivity Technology | USB (Lightning, USB Type A, USB Type C) |
| Hardware Platform | Mac, PC |
| Product Dimensions | 2.83 x 0.79 x 0.39 inches (7.19 x 2.01 x 0.99 cm) |
| Item Weight | 0.705 ounces (20 grams) |
| Special Feature | Apple MFi Certified |
Warranty and Support
Warranty Information
The JSL JDTDC 128GB MFi Certified 3-in-1 USB Flash Drive comes with an 18-month after-sales service (A/S) warranty from the date of purchase. This warranty covers manufacturing defects and issues arising from normal use.
Please retain your proof of purchase for warranty claims.
Customer Support
For technical assistance, warranty claims, or any questions regarding the product, please contact JSL JDTDC customer support through the retailer where the product was purchased or refer to the official JSL JDTDC website for contact details.




