A male to A female; Extends & boosts the signal to any USB device; Supports data transfer speeds up to 480Mbps; Built-in repeater helps maintain high-speed USB signal quality, electrical & timing specifications; Overcomes the 16.4ft USB distance limitation--ideal for connecting enclosures & other peripherals ; Daisy-chainable up to 3 extensions for total distance of 49.2ft; Plug & play; Compatible with Windows(R) & Mac(R) ; Bus powered; Requires no external power supply; 3-year warranty;