... .sd, tf, ms,m2 card reader 2.with 3 ports usb hub 3.max transfer speed 480mbps ... .difference model Multi card reader with 3 ports usb hub 2.0Features:1.Compliant with usb 2.02.Data tramsfer ... per individual port4.Plug and play , no driver installation needed5.with 3 ports usb hub , 4 card readerSupported systems : ... .Mac OSX v10.2.7 or highter for usb 2.0 modeSupported memory cards : 1.Slot 1: SDHC / SD / ...