OHM USB Multi-Card Reader/Writer - Black (CDR-500) Number of Card Types Supported: 51 Media Type Compatibility: Memory Stick, SmartMedia (SM) Card, CompactFlash (CF) Type I/II, Secure Digital (SD) Card, Memory Stick Pro Duo Card, Secure High Capacity (SDHC) Card, MultiMediaCard (MMC) Data Transfer Rate: Up to 480 Mbps Wired Connectivity: USB 2.0 Power Source: USB-powered Operating System Compatibility: Windows Vista, Windows XP, Mac OS X Includes: USB Cable Dimensions: 0.62 &#34; H x 3.25 &#34; W x 2.0 &#34; D