Lindy USB 2.0 Active Extension Cable - male to female USB cable (type A), expandable up to 56m, ATTENTION the first of the extension chain needs always to be the 8M active extension (A# 234093), compatible with USB 1.1, supports 480Mbit/s, 12Mbit/s and 1.5Mbit/s, plug-and-play, USB bus powered. Compatible with Windows (ME, 2000, XP, Vista and 7), Mac (OS9 and OSX) and Linux. Length: 12m