Qualstar Corporation, together with its subsidiaries, manufactures and markets data storage system products and power solutions worldwide. The company operates in two segments, Data Storage and Power Supplies. It provides data storage systems under the Qualstar brand and power solutions under the N2Power brand. The company designs, manufactures, and sells switching power supplies that are used to convert AC line voltage to DC voltages; or DC voltages to other DC voltages for use in various electronic equipment, such as communications equipment, industrial machine tools, and wireless systems, as well as medical and gaming devices. It also supports and sells data storage devices used to store, retrieve, and manage electronic data primarily in network computing environments. The company serves resellers, system integrators, and original equipment manufacturers, including OEMs in various markets, such as telecom/networking equipment, audio/visual, industrial, gaming and medical industries. The company was incorporated in 1984 and is based in Irvine, California.