Actual storage: 3.2GB to 3.8GB; Connector: USB connector it works without driver support hot plugging. Applicable models: Various kinds of PC and computers Macintosh PowerBook iMAC or ibooks. Operating system: Windows 7 / 95 / 98 / 95 / 98 / XP / ME / NT Vista Linux UNIX PC DOS DR DOS Mac OS and OS / 2 etc. Electricity: USB bus power supply (4.5 V~5.5 V); Working current: <50 mA; High-efficiency: data transfer rate is extremely high. A compact lovable cartoon character can bring a lot of visual enjoyment for you and give you a good mood. It is also convenient and portable.