SmartDisk THUNDERBOLT HI-SPEED USB 2.0 (CM-28100) Dazzle Thunderbolt USB 2.0 SD/MMC and Memory Stick Reader/Writer General Features: Reads and writesto SD/MMC/and MS cards USB 2.0 interface (USB 1.1 compatible) Up to 480 Mbps data transfers Built-in USB connector Unit Dimensions: