Specifications and Packaging


Cooler Master appears to be once again using HEC as their OEM partner for the MasterWatt 650W Bronze power supply. It is rated for a combined, continuous output power of up to 650 watts at 40°C operating temperature. The PSU incorporates a single +12V rail that can deliver up to 54.1A (650W) on the single +12V output.  The PSU includes universal AC line input (automatically adjusts to the AC line voltage between 100 and 240 VAC) and active PFC, which makes the unit more environmentally friendly to the local power grid.  

Specifications (from the Cooler Master website):

Packaging and Parts

The MasterWatt 650W Bronze power supply arrived packed inside a standard retail box showcasing the unit’s features and specifications.  

An air-filled plastic insert protects the power supply.

In addition to the power supply, the box contains a power cord, mounting screws, a brief User Manual, and a bundle of modular cables.

The MasterWatt 650W power supply comes with a very good assortment of cables. The 24-pin and 4+4 pin ATX cables are fixed while the remaining five cables are modular. The two PCI-E cables each have two connectors on the end and feature 16 AWG wire for reduced voltage drop. (See table above for connector count and cable lengths.)

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