Kingwin Mach 1 ABT-700MA1S 700 W Power Supply Review

Power Distribution

In Figure 17, you can see the power supply label containing all the power specs.

Figure 17: Power supply label.

According to the label, this power supply has four virtual rails. However, since this power supply does not have over current protection (OCP) circuit, it is in fact a single-rail unit. The difference between a single-rail power supply and a multi-rail one is the presence of individual OCP circuits on each +12V rail, feature not present on the reviewed model. So the information present on the label listing four rails is just an ornament as this power supply uses in fact a single rail design. For more information, read our tutorial on this subject.

Now let’s see if this power supply can really deliver 700 W of power.