Output Noise
For these measurements we used a high quality CEM-8852 Sound DB Meter which was installed 50cm away from the NAS. The ambient noise in our lab during noise measurements was close to 30dBA.
Output Noise Comparison Graphs
The following graphs show the output noise of DS412+ in comparison with other units we have tested in the past.
As you can see at normal operation the DS412+ is quiet enough and won't bother you unless you have super sensitive hearing.