This is just a piece of plastic taking up space and used as an alignment guide. Yes, it works, but the laptop sticks out a few inches more than the old model due to poor dock connector placement (which is why this thing is needed). I don't know why Dell didn't bother to either make a docking station with the connector further back or to place the connector on the laptop so that it doesn't protrude further than it should. Considering dock designs are several years old, a new version (possibly with USB3 or other upgrades) and connector for their newer machines would probably be welcome.
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