"The electronics store chain Best Buy has several house brands and two of them are used for computer components: Dynex and Rocketfish. We have already reviewed Dynex 400 W power supply and Rocketfish 700 W power supply. While the models we reviewed a while ago were manufactured by Huntkey, Best Buy decided to hire a different company for their 550 W model: CWT. They also replaced Huntkey as the manufacturer for their 700 W model, so the 700 W model you find now on stores today (labeled "RF-700WPS2") is manufactured by CWT, not by Huntkey anymore. Let's see if this new 550 W power supply survives our tests."