1) Compatible with USB 2.0 Standard 2) 4 Slots Multi Function Flash Reader. 3)Transparent Plastic Case 4) Supported All kinds of flash cards in the market.. 5) Plug & Play and Hot Swapping. 6) 5 indicators for easy recognition. 7) USB bus-powered, no external power supply required. 8) Support OS : Win98SE/2000/ME/XP/Mac OS 8.6 or higher. 9) Supports Compact Flash Type I ;Compact Flash Type II ;IBM Microdrive;SD ;Mini SD ;T-Flash Card ;Smart Media ;MMC ;MMC-II ;RS-MMC ;Memory Stick ;Memory Stick Pro ;Memory Stick Duo ;Memory Stick Pro Duo ;Memory Stick MagicGate ;Memory Stick MagicGate Puo ;Memory Stick MagicGate Duo ;XD Memory Cards