1)All in one card reader with usb hub,all in one card reader 2)3ports USB HUB,up to 480M bps 3)Suit for : MS/MS DUO/MS PRO SD/MMC/RS-MMC,mini sd(with adaptor),SDHC TF/MICRO SD CF/MD XD 4)Plug and play 5)USB bus-powered, no external power supply required 6)O/S support: Windows 98SE/2000/ME/XP/VISTA /Mac OS 8.6 or higher