Don't buy this. This has nothing to do with three screens. Nothing at all. You buy this and you have two screens. It's not very big and attaches to the lid of your laptop. So when you flip the lid back, the monitor now flips back. The cable is thick and annoying. A third monitor will cost you another $300. Do not do that. Buy two cheap mobile monitors, they still break after a year, but at least you won't cry.
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