If you have a Lenovo ThinkPad and can't afford to disconnect your laptop from your monitor, then this is the cable you need. To save a few pennies, I tried other less expensive cables, but they either failed to transmit a signal or wouldn't stay connected to my Dell U4320Q monitor. Lenovo's cable is better (more thoughtfully designed) than the competition, and the six-foot length is perfect for my needs. This is a heavy duty accessory that I have enjoyed using for the past two months and would highly recommend it if your use case is similar to mine.