We always like to review power supplies from companies that we’ve never heard before to know if they products are good or not. And we were really happy to see In Win Commander 650 W surviving our tests.

Commander 650 W has two great advantages over other mainstream 650 W products. First, efficiency. We were really surprised to see efficiency of up to 87.8% with this product, and if you pull up to 80% from its capacity (520 W) you will see efficiency of at least 86%. Delivering its full labeled capacity (650 W) efficiency was at 83.7%, which is very good.

The second main advantage is that Newegg.com is offering a USD 50 rebate on this product, making it cost only USD 85, which is an unbelievable price for this product. Unfortunately if you live outside the USA you probably cannot get this benefit and will have to buy it at its regular price (which could be lower).

The warranty In Win is giving to this power supply is a little bit different from what we’ve been seen on the market. They give a “limited lifetime warranty,” which means that you get a full warranty for the first three years and after that if something goes wrong with your unit you will have to pay for them to fix it (the parts are free, however).

The number of cables that come with this unit is satisfactory for the mainstream user, with the advantage of the two auxiliary power cables for video cards coming with 6/8-pin connectors. However since it comes with only two auxiliary power cables for video cards you will need to use adapters to convert peripheral power plugs into video card power plugs if you want to install two very high-end video cards in SLI or CrossFire modes, since this kind of card requires two auxiliary power cables each.

The only drawback from this power supply is its high ripple and noise level at +12 V when delivering 650 W, touching the maximum allowed. This is a chronic problem with power supplies based on this particular CWT design and that is the only reason we are giving it our “Silver Award” instead of “Golden Award” seal.