The Huddlecam line offers 2 cameras that are USB 2.0. The Huddlecam 3xG2 and the Huddlecam 10x720p are both USB 2.0 cameras. They will work using USB 2.0 extension and don't exceed the 480mb/s speed that USB 2.0 provides. All of our other cameras are USB 3.0 cameras (10xG2, 3xWG2, 12x, 20xG2, 30xG2). They will work with USB 2.0 cabling but at a significantly reduced resolution (1080p vs 480p)