USB 3.0 multi-card reader for CFast 2.0 memory cards ,- For reading and writing CFast 2.0 memory cards ,- Downward compatible with USB 2.0 (480 Mbit/s) and USB 1.1 (12 Mbit/s) ,- Data transfer rate: up to 500 MB/s with USB 3.0 high speed mode , ,System Requirements: ,- Operating system: Windows 8/7 and Mac OS 10.8.2 or higher