... four ports2)USB1.1/2.0 spec, full transfer speed is 12 to 480Mbps3)With or without external power adapter can be selectable4)Driverless ... , plug and play5)Supports windows 95 OSR2, 98, 98se, Me, 2000, XP, Linux/Mac OS6)Comply with ... )High quality,nice apperence,good price. Four-port Mini USB Hub with Plug-and-play Format