I am a professional video editor working on broadcast shows. I travel frequently and work in OB trucks. I use a MacBook Pro for all my editing/graphics needs. As you know the new MacBook Pros are short on ports. This product helps a lot. I was using a Caldigit Thunderbolt 3dock, the TS3+ which required mains power. This is bus-powered. And occupies less space on my desk. Since buying this, I have packed up my Caldigit. Just buy it.