Sea Sonic

Sea Sonic Electronics Co., Ltd. (), stylized as Seasonic, is a Taiwanese power supply and computer PSU manufacturer and retailer, formerly limited to trading hardware OEM for other companies. They first started making power supplies for the PC industry in the 1980s. All of their PSUs are certified 80 Plus.
In 2002, Sea Sonic established a wholly owned subsidiary in California to sell products in the US retail market and to provide technical support.