Features:1)CompatiblewithUSB2.0Standard.2)4SlotsMultiFunctionFlashReader.3)SupportedAllkindsofflashcardsinthemarket..4)Plug PlayandHotSwapping.5)5indicatorsforeasyrecognition.6)USBbus-powered,noexternalpowersupplyrequired.7)SupportOS:Win98SE/2000/ME/XP/VISTA/MacOS8.6orhigher.8)SupportMemoryCard: CompactFlashTypeI CompactFlashTypeII IBMMicrodrive SD MiniSD T-FlashCard SmartMedia MMC MMC-II RS-MMC MemoryStick MemoryStickPro MemoryStickDuo MemoryStickProDuo MemoryStickMagicGate MemoryStickMagicGatePuo MemoryStickMagicGateDuo xD9) Size:9.5*7.5*2.0cm