Daisy chainable up to three units to support up to 117 ft Built-in booster chipsets amplify high-speed USB signals Plug-and-Play, no drivers or power supply needed PC or MAC Compatible USB 2.0 transfer rates up to 480 Mbps Product Description IOGear's GUE2118 USB 2.0 Booster Extention Cable uses active electronics to amplify the USB signal beyond the USB 2.0 spec. of 15 feet, it does this with no loss of data integrity or signal quality. The cable has male and female USB type "A" connectors. The USB "A" connector is the retangular plug found on PC's, hubs, and many other host interfaces. The cable extends from the host and provides another female "A" connector for longer distance USB needs. The cable is transparent to the host and device and it compatible with any O/S or USB accessory. It is ideal for applications that require distance, for example placing a printer in the office or home where more users have easier access. The IOGEAR 2.0 Booster Extetion Cable is Plug-and-Play no additional drivers or complicated set up required. Daisy-chain three cables together in order to reach a total of 117 feet of USB High-Speed connection.