Buy with Confidence: With Monoprice's Lifetime Warranty on all Cables, you can rest assured we stand behind our products and our customers.It comes with a USB A male connector on one end and a pair of USB A female connectors on the other. Extending USB cables beyond about 15 feet you can suffer from signal strength reduction includes a signal amplifier, which will boost the signal strength so you can extend further without signal loss. Has two LEDs, one to indicate when an external power source is connected and the other to indicate when a valid USB data link is established with one or both of the hub ports