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 elect...