Thank you for your comment. As a man of science I decided to try to narrow down the cause of the issue by isolating the source. At first I tried to mount the harddrive without the bracket but with a rubber between the drive and the case - no noticeable effect Then I tried taking the drives out of th...

Hi, Long time reader, first time poster. I've recently bought a QNAP TS-251+ NAS and equipped it with 2 WD Red 2 TB drives (wd20efrx-68euzn0) based on the reviews on this page. However, when drives are writing or possibly seeking, the device is quite noisy and definitely noisier than the recordings ...