The USB2AAEXT15M 15m Active USB (Universal Serial Bus) 2.0 Extension Cable, offers one USB (Universal Serial Bus) 'A' male connector & one USB (Universal Serial Bus) 'A' female connector, & provides an active extension of USB (Universal Serial Bus) 2.0 devices of up to 15-meters (49.2-feet). An all-in-one cable for overcoming distance restrictions as well as power source limitations, the active USB (Universal Serial Bus) 2.0 extension cable incorporates bus-powered active circuitry to ensure performance beyond the length limits of standard USB (Universal Serial Bus) cables. Up to 4 of these cables can be daisy-chained together, allowing for a total USB (Universal Serial Bus) extension of up to 60-meters. If necessary, the USB (Universal Serial Bus) device can be powered from a wall outlet using the Universal AC power adapter (provided with the cable). The USB2AAEXT15M repeater cable supports the full USB (Universal Serial Bus) 2.0 bandwidth of 480 Mbps, & is backed by Star Tech.com's 2-year Warranty. The Star Tech.com Advantage No USB (Universal Serial Bus) signal loss, even at a distance of up to 49.2 feet (15 meters) Power your USB (Universal Serial Bus) devices directly from the USB (Universal Serial Bus) port or through the included universal external power adapter Daisy chain up to 4 cables together for reaching connection distances of up to 60-meters between your USB (Universal Serial Bus) 2.0 devices