Smile face booke clip USB 4 Port HUB, Support USB2.0 and 1.1,Transfer Rate Up to 480Mbps,Middle speed:12Mbps,Low speed1.5Mb Smile face booke clip USB Smile face booke clip USB, 4 Port HUB, Support USB2.0 and 1.1,Transfer Rate Up to 480Mbps,Middle speed:12Mbps,Low speed1.5Mbps. Fax machine, carema and so on will be ok, Product size: 7.5*4.5*9.3cm