Do NOT use Endorphin.es modules if you care about stability or in-line noise.
I had a massive issue with them two years ago, before their recent release shitshow on module noise, that I ended up eating ~20% restock and shipping fees for a bunch of modules that came out to a couple of hundred USD.
To summarize, my Shuttle Control had rattling bits inside, USB MIDI would randomly drop connectivity (necessitating repowering the module or hotplugging), USB power would fluctuate, Cockpit mixer had cross-talk and really high noise floor on two channels.
I played club gigs on a monthly basis, these issues were downright unacceptable (I had to live troubleshoot them while performing twice, one was unrecoverable and I considered myself lucky that CDJs were set up for my opener, and I had my USB), especially since the noise floor could be heard on a large PA.
I got exchanges thinking my modules were faulty, and eventually had to return all of them, at cost to me, when Endorphin.es came back and claimed that they were āoperating within specificationsā when they were clearly not operating fine (as defined by āas expected of what a module should doā).
The high noise-floor is showing up again on Milky Way and Squawk Dirty, but this time enough people have encountered this issue that Perfect Circuit has RMAād them despite Endorphin.es refusing to acknowledge what is essentially a design flaw and misleading marketing.