Feature 1. Hot-Swappable Supported, compliant to USB2. 0 2: Reader and Writer Supports: Compact Flash/Micro Drive/ Smart Media. Multimedia/ Secure /Digital Card/ Memory Stick/ Memory Stick PRO /XD-Picture 3: Read high speed over 4. 3Mbps, write high speed over 1. 3Mbps 4: Icon beside the card slots, easy to distinguish 5: LED working indicator light Compact and streamline design on its shape. 6: Support WIN 98/2000/XP Mac os V9. 2 or higher