CWT 750VH 750 W Power Supply Review

Conclusions

This is a good power supply, using the same design as Corsair TX750W and Thermaltake Toughpower 750 W. It not only delivers 750 W at 50° C but we could pull up to 940 W at 45° C from this unit, which is remarkable. So basically you are buying a 750 W power supply and bringing home a 940 W unit.

 It is an excellent alternative to these two popular products, especially because of its lower price tag. It is internally identical to Corsair TX750W, but coming with a modular cabling system, feature not found on Corsair’s model. Thermaltake Toughpower 750 W also has a modular cabling system, but this power supply from Thermaltake uses transistors with lower current limits on the switching section (all other components are identical), so CWT-PV750 is a better product.

The highlight of this product is its efficiency, always above 80%, even when we overloaded it (a lot, by the way). If you pull around 40% of its nominal power (300 W) you will see an outstanding 88% efficiency. At full load, it presented 83% efficiency, which is a terrific result.

Noise and ripple could be lower, but they were still below the maximum allowed.

This power supply, however, isn’t flawless: there are two drawbacks you should be aware of. First, apparently it doesn’t feature over load protection (OPP/OLP). This feature is desirable but since it can deliver far more than it is labeled, almost nobody will miss this. The second problem is the support for only two video card power cables. This is a major problem, because high-end video cards require two auxiliary power connectors, so you will be able to connect directly to your power supply only one high-end video card or two mid-range models. A power supply on this power range should come with four video card power connectors. Of course you can solve this issue installing adapters on the peripheral power connectors, but this will lower the number of available peripheral power plugs.

If what we said above does not bother you, you can go ahead and buy this product.