USB 2.0CARDER/WRITER with 3-port HUB *All-in-1 design,4 slots supportsing all xards listed bellow: Slot1 SD,SD-uitra,SDC,MMC,HSMMC*MiniSD,*T-Flash Slot2 CF-typeI,CF-Type II,ultra Micro Drive Slot3 X card Slot4 MS,MS(Magic Gate),MS-Pro(Magic Gate),Hs-MS-P ro(Maglc Gate),*Ms-Pro-Duo(Maglc Gate),*Hs-Ms-Pro-Duo(Magic Gate) *mesns CARD ADAPTER is needed. Support Windows ME/2000/XP and Mac.without USB device driver. Support Windows 98SE with USB device driver. Power supply:DC+5volts supplied by USB port. Durability:20,000cycles of insertion/removal.