Qualstar Corporation is a provider of data storage systems marketed under the Qualstar brand and of power solutions marketed under the N2Power brand. The Company's segments include Power Supplies and Data Storage. Under the Power Supplies segment, it designs, manufactures and sells open frame switching power supplies. Under the Data Storage segment, it designs, manufactures and sells automated magnetic tape libraries used to store, retrieve and manage electronic data primarily in network computing environments. The Company offers switching power supplies that provide power solutions to original equipment manufacturers for a range of markets, including communications networking, industrial, gaming, test equipment, light emitting diode (LED)/lighting, and medical, as well as other market applications. Its storage products provide data protection and archive storage systems, which are used to record, retrieve and manage electronic data, primarily in networked computing environments.