80 PLUS CERTIFIED80 Plus certified ensures the better power efficiency. Less power waste reduces the heat and fan noise. PW400 can be up to 84% efficiency. (80 Plus qualification is 80%)RELIABLE MESH BRAIDED CABLEPW400 provides the best solution for the system builds. The mesh braided cable reduces the clutter and improves the airflow in the case.SINGLE +12V RAILSingle +12V rail provides the best power output, stability and compatibility for the hardware. And it is the best design for installation.120MM SILENT FAN120mm silent fan optimizes the noise reduction and the thermal performance. The fan speed is adjusted according to the automatic power detection. The Hydraulic Bearing fan provides longer and more stable life time.