With a maximum guaranteed length of 16 feet, very few USB runs are successful without the use of Active extension cables. The Sabrent USB-X20M USB 2.0 Active Extension Cable which features a booster-box on the end, and when strung together, can achieve a new maximum of 65 feet. The Sabrent USB-X20M USB 2.0 Active Extension Cable supports data transfer rates up to 480Mbps and are fully backward compatible with both low and high-speed USB v1.1 devices.