Multibridge Pro (ver. 1) - is it dead?

Hi all,

It's my first post on this forum, because I was a happy user of the Multibridge Pro paired with Mac Pro.

Until yesterday, out of nothing, it died. Or it seems so.

Mac Pro connected to the MBP won't even boot. When MBP is in standalone mode, neither PC nor Mac Blackmagic utility won't see the device connected with USB. The red LED doesn't lit up.

The Fan is working though - so it's probably not the power issue.

Has anyone experienced such unpleasent surprise one day? Am I right? It's dead? Or maybe there is some simple solution for that?

Looking forward to any help