What is the largest Firebox that is fanless (i.e. silent)
I am using a smallest box for a residential installation (no server room or rack). I want to upgrade to a more powerful unit but it needs to be silent (or very very quiet). In this setting a rack mount (e.g. M200) sounds like a Boeing taking off .
Are all of the T models fanless and silent? (T15 to T70 or T80)?
If not, where is the cross-over when the units get internal fan?
Thanks in advance for any help.