When it comes to PC cases one thing that I look for during a review is the overall quietness of the case. This usually pertains to the noise generated when the hard disks and optical drives spin up causing vibration or rattling. For those that do not already own a case that aims to quiet these devices initially, there are a few aftermarket products that take aim at reducing transferal noises from the hard drives, optical drives, cooling fans, and the PSU. One such company is the one from I-Star called 7zoneUSA and their line of DYI products.