EXTENSION Name: USB TO EXTENSION CABLE Model: SP102 Enlarge transmission distance from USB cable : 1.Enlarge& transmit signal actively though internal IC board. 2.SupPort PC& Macintosh 3.SupPort Plug& Play, Hot pluggable. Features : 1.Full compliance with USB spec Rev 1.1 2.SupPorts 12Mbit/s Full Speed and 1.5Mbit/s Low Speed 3.Serial data transmission 4.One upstream Port and One downstream Port System Requirements : 1.Windows 98, Me, 2000 or XP 2.Mac Os8.6 and later versions