When you plug the ThinkVision LT1421 into a Windows notebook for the first time, you will need to install its drivers manually.
The LT1421 doesn't have a pass-through, so you'll need to attach any additional monitors to their own USB ports or use a hub. Lenovo says you can attach up to six ThinkVision LT1421 monitors to a single PC, which is standard for all monitors that use the same DisplayLink USB video technology that powers this monitor. In tests on both a ThinkPad X301 and a MacBook Pro, we only needed to use the right plug to get full power and data to the monitor. A Lenovo rep told us that the second of the dual plugs is only needed if you have an older notebook which doesn't supply adequate power through one USB port.
