Lexar Professional CFR1 Card Reader for CF Cards is a USB 3.0 card reader designed for use with the Lexar Professional Workflow HR1 Hub. This compact design fits in one of four bays of the HR1 Hub enabling you to use along with three additional Professional Workflow Card Readers. Alternatively, this reader can be used independently of the hub as a standalone reader along with the included USB cable. CompactFlash UDMA 7 card reader compatible, with a 3.0 interface for high-speed transferring up to 5 Gbit/s. Compatible with Mac OS X 10.6 or later and Windows 7/8 operating systems.