FSP does not have much to say about its Hydro X in terms of marketing speak, but it does hit the high points that enthusiast system builders are looking for: “Silent operation, High efficiency ≧ 90%, Full Japan-made electrolytic capacitors, Powerful single +12V rail design, Ribbon cables, and Complete protection: OCP, OVP, SCP, OPP, OTP.”

Source: [H]ardOCP – FSP Hydro X 650W Power Supply Review