The HDSS is easily one of the most effective hard drive silencing solution I have had the opportunity to test. It completely muffled hard drive sound to the point where you needed to put your ear very close to hear the drive.
The system did not affect performance of the drives, and only resulted in slightly hotter then normal operation. This was easily fixed with proper case airflow, and the drive operated at a descent temperature. The unit itself is fairly large, and as a result only those with larger sized cases will probably be able to install it.
Priced at around $35.00 US, the SilenX Luxurae Hard Drive Silencing Solution is a must have item for any PC silencing enthusiast. The entire system is easy to install, very effective at sound reduction, and comes with a 2-year warranty. Of all the options out there, the SilenX is easily among the best.
READ FULL REVIEW HERE... Advantages: Reduces hard drive sound decibel output from 3dBA to 8dBA.
Very easy to install
2-year warranty
Very inexpensive running roughly $35.00 US.
Disadvantages: Large and could be difficult to place in small sized cases.
Source : AuphanOnline
