Product features: *Full Speed USB V1.1 or V2.0 connectivity *Read and write flash memory card *Truly plug-and-play, hot swappbble *Perfect for mobile user *A convenient and fast data exchange device for Mp3 .PDA.Digital Camera. Etc *USB bus-powered ,no external power supply is needed *USB interface *Power LED indicator System Requirement: *Intel Pentium 233. AMD K6 or above CPU *IBM PC or 100% IBM PC compatible system with USB port *Microsoft windows 98/98SE ,Windows ME .Windows 2000 or Windows XP *Linux core 2.4 and Mac OS 8.6 & above