Quest Components stocks and sells a wide variety of product from Power-One. As one of the worlds largest providers of power conversion and power management solutions, Power-one is one of only a few companies with the product breadth to support every step in the refinement of utility-grade AC into the various DC voltages required to power high-availability infrastructure systems at the site, system, and semiconductor levels. In July 2013 ABB acquired Power One. In April of 2014 ABB agreed to sell the Power Solutions business of Power-One to Bel Fuse Inc.