Output Noise
For these measurements, we used a CEM-8852 Sound DB Meter, installed 50 cm away from the NAS. Ambient noise in our lab was below 30 dBA while these noise measurements were taken.
The NAS is very quiet while operating normally, only producing 30 dBA.
Output Noise Comparison Graphs
The following graphs show the DS215+'s output noise and compare it other units we have tested in the past.