The CompactFlash Card Reader is a fast and convenient way of transferring data between any CF Card format and your PC or Mac. Insert your CompactFlash Card into a connected reader and view your files instantly The perfect partner for your digital camera and DSLR Compatible with Type I and II CompactFlash Cards USB 2.0 specification, will work in any USB port CompactFlash Card port appears as a removable drive Up to 40X faster than using your camera's serial cable (Depending on system configuration) Draws power from the USB port Save your camera batteries Backup camera photos and videos onto your computer hard drive Backup computer files onto your CompactFlash Card Installs in seconds 1 year warranty System Requirements USB Port (USB 2.0 for hi-speed data transfer) Windows XP / Vista / 7 / 8 Mac OS 8.6/9.x and X (from 10.1.2)