Plug and Play,automaticinstallation Noexternal power supply Supporthot swap. .Compact,easy to carry The highestcanreach480MB / saccessrate . USB2.0interface, backwardcompatible withUSB1.1 BabySize: 32* 16*7 mm Support forWindows 98/2000 / XP / Vista, Mac OSX 9.xandaboveoperating systems. Support memorycard types: SupportMicro SD / T-Flash / SDHC / TFcard