Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very unreliable

Very unreliable piece of equipment. Works for awhile, but looses ports, keyboards, etc... on a regular basis. Only buy this product if you like rebooting your computer to get your keyboard, mouse, or other ports back again every few hours. Also, some vendors are pretending this is a "docking station" it is not. It is only a port replicator.