They don't have to be that expensive, but they're great for people who have a workstation that they use most of the time. Mine was hooked up to an extra power adapter, 24" screen, mouse and ethernet. The spring that presses the plate against the connectors doesn't always push it out properly, but it made it easier to just plug my laptop into my computer. this and more. When you're done, just press the eject button and put my laptop away. Mine was probably used in some corporate environment where it was tethered to a laptop so it was in good working order. Your standard power adapter doesn't work and you need one included. The VGA connector produced some unwanted video so I used DisplayPort. I wish it had more USB3.0 connectors but it was still early days for that. It's also a shame that docks like this will disappear, because those that connect only via USB 3.0 with display outputs work, but are the same or more expensive and less practical, without video power in the ether.
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