Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Died in a matter of 2 weeks

About a month ago, we purchased the Superstack 3 3300 10/100MBs ethernet switch. We installed it with no trouble, but within 2 weeks, the power supply died and we were unable to use it. It caused multiple issues on our network and with communications.I desire to return this product immediately and need info on how to do so.