1. Overview
The BENFEI CFexpress Type B Card Reader is engineered for high-speed data transfer from CFexpress Type B memory cards. It features a versatile 2-in-1 USB-C and USB-A connector, ensuring broad compatibility with various devices. Designed for durability and efficiency, this card reader facilitates quick and reliable access to your data.

Image 1.1: The BENFEI CFexpress Type B Card Reader, showcasing its compact design, integrated USB-C and USB-A connectors, and a CFexpress Type B memory card.
2. Product Features
- 10Gbps Super Speed: Specifically designed for CFexpress Type B memory cards, supporting USB 3.2 Gen 2 (10Gbps) data transfer. Achieves high speeds when connected to a compatible USB 3.2 Gen 2 port.
- 2-in-1 USB-C/USB-A Design: Features an integrated cable with both USB-C and USB 3.0 (Type-A) connectors, allowing direct connection to a wide range of computers and laptops, including those with Thunderbolt 3/4 ports.
- Wide Compatibility: Compatible with major operating systems such as Windows XP/Vista/7/8/8.1/10, Mac OS, Linux, and Android. Supports CFexpress Type B memory cards only; not compatible with CFexpress Type A/C or XQD cards.
- Enhanced Stability and Durability: Constructed with a braided nylon housing for the cable, tested for over 10,000 bends. The high-quality aluminum alloy housing and heat-resistant connectors ensure long-term reliability.
- Compact and Portable: Small form factor makes it easy to carry for on-the-go data transfer needs.
3. Setup and Connection
To set up your BENFEI CFexpress Type B Card Reader, follow these simple steps:
- Insert CFexpress Card: Gently insert your CFexpress Type B memory card into the designated slot on the card reader until it clicks into place. Ensure the card is oriented correctly.
- Connect to Device:
- For devices with a USB-C port (e.g., MacBook Pro, modern laptops, tablets, smartphones), use the USB-C connector.
- For devices with a standard USB-A port (e.g., desktop PCs, older laptops), use the USB-A connector. The USB-C connector can be tucked into the USB-A connector for convenience.
- Verify Connection: Once connected, your operating system should automatically detect the card reader and the inserted memory card. No additional drivers are typically required for most operating systems.

Image 3.1: The card reader connected to a laptop, demonstrating its compact size and flexible connection options.
4. Operating Instructions
Using the BENFEI CFexpress Type B Card Reader is straightforward for transferring various types of data.
- Accessing Data: After successful connection, the CFexpress card will appear as a removable drive in your computer's file explorer (Windows) or Finder (Mac OS). Double-click to open and access your files.
- Transferring Files: Drag and drop files or folders between your computer and the CFexpress card. For optimal speed, ensure your device's USB port supports USB 3.2 Gen 2 (10Gbps).
- Ejecting the Card: Always safely eject the card reader from your operating system before physically disconnecting it to prevent data corruption. Right-click the drive icon and select "Eject" or "Safely Remove Hardware."

Image 4.1: Visual guide illustrating compatibility with CFexpress Type B cards and incompatibility with Type A, Type C, and XQD cards.

Image 4.2: Illustration highlighting the 10Gbps super-speed capability of USB 3.2 Gen 2, significantly faster than USB 2.0.

Image 4.3: The card reader supports CFexpress cards with capacities up to 2TB, suitable for large photo, video, music, and other file transfers.
5. Compatibility
The BENFEI CFexpress Type B Card Reader offers broad compatibility with various devices and operating systems:
- Supported Operating Systems: Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Mac OS, Linux, Android.
- Compatible Devices: Laptops (including MacBook Pro, Surface Pro/Go), Desktop PCs, iPads, and Smartphones with compatible USB-C or USB-A ports.
- Card Type: Exclusively supports CFexpress Type B memory cards.

Image 5.1: This image illustrates the wide range of devices (MacBook Pro, iPad, Laptop, Surface Pro/Go, Desktop PC, Phone) and operating systems (Windows, Mac OS, Chrome OS, Linux) compatible with the card reader.
6. Maintenance
To ensure the longevity and optimal performance of your BENFEI CFexpress Type B Card Reader, consider the following maintenance tips:
- Keep Clean: Regularly wipe the exterior of the card reader with a soft, dry cloth. Avoid using liquid cleaners or abrasive materials.
- Protect Connectors: Keep the USB-C and USB-A connectors free from dust and debris. When not in use, store the reader in a clean environment.
- Avoid Physical Damage: Do not drop the device or expose it to excessive force. The aluminum alloy housing is robust, but extreme impacts can cause damage.
- Temperature and Humidity: Store and operate the card reader within normal room temperature and humidity levels. Avoid extreme heat, cold, or damp conditions.
7. Troubleshooting
If you encounter issues with your BENFEI CFexpress Type B Card Reader, try the following troubleshooting steps:
| Problem | Possible Cause / Solution |
|---|---|
| Card not recognized |
|
| Slow data transfer speed |
|
| Reader disconnects randomly |
|
8. Specifications
| Feature | Detail |
|---|---|
| Brand | BENFEI |
| Model Number | 000352grey |
| Media Type Supported | CFexpress Type B Card (Not for Type A/C or XQD) |
| Connectivity Technology | USB Type C, USB Type A (2-in-1 design) |
| Data Transfer Rate | 10 Gigabits Per Second (USB 3.2 Gen 2) |
| Compatible Operating Systems | Windows, Mac OS, Linux, Android |
| Compatible Devices | Laptop, Computer, Smartphone |
| Item Weight | 2.11 ounces |
| Package Dimensions | 6.02 x 3.58 x 0.67 inches |
9. Warranty and Support
BENFEI provides an exclusive 18-month warranty for this product, ensuring long-term satisfaction with your purchase. This warranty covers manufacturing defects and ensures the product performs as described under normal use.
For any questions, technical assistance, or warranty claims, please contact BENFEI customer service. Our friendly and easy-to-reach customer service team is available to help solve your problems timely.
Please refer to the official BENFEI website or your purchase documentation for the most up-to-date contact information and detailed warranty terms.