Bit-Tech published a review of the Cooler Master CM 690 chassis

The Cooler Master CM 690 is a nice looking case, there’s no doubt in my mind about that, and the fact that its available for around fifty quid in the UK only sweetens the deal. On top of that, the cooling performance is pretty admirable.

Does the case have problems? Sure it does, but nothing is perfect. The plentiful ventilation grilles mean that the case can get pretty noisy, especially if you have it on your desk right next to you monitor. That’s only going to get worse the more fans you put in the case too, though it can also be solved pretty easily by putting the case in a desk alcove.

The main problem with the case though is the apparent flimsiness of the material and the fact that the build quality is occasionally a little suspect. The front of the case doesn’t meet the side panels or the top of the case all that well, even on the side that I didn’t damage.

Regardless, the Cooler Master CM 690 is still a very worthy addition to the catalogue and the cheap price means that pretty much anyone can
justify the expense. It may not be the most flash case we’ve ever seen, but it does what it says on the tin and it does it well at that. There’s
not much more you can reasonably ask for.

Cooler Master CM 690 chassis Review