1)USB interface 2)3.5-inch 1.44MB FDD 3)Super slim and lightweight 4)Available USB bus supply current:500mA or less 5)Data capacity:1.44MB (formatted) 6)USB data transfer rate:Full speed / 12Mbps 7)Data transfer rate:500KB (1.44MB) 8)Number of cylinders:80 9)Rotation speed:300rpm, 360rpm recording method:MFM 10)Average latency time:100 seconds (1.44MB mode) 11)Supports various operating systems (Windows, Mac)12)Color:Silvery, black 13)Shell material:Plastic 14)Package contents:1 usb fdd in black or white case1 user manuel1 disk for install15)50pcs/ctn, brown box or color box and your customed box are welcome16)Support windowsXP/7/VISTA/2000