I've seen questions about this, but no official response from Presonus so I'm going to restate the question:
On Quantum 2, with a certified apple thunderbolt cable plugged into a new Mac Pro trashcan - we see a blinking
blue light, and the power led in red. I've tried everything I could think of - I have this same device in my studio and had similar issues at first but somehow I was able to get by it. This situation is having at a studio install I'm in the middle of and I couldn't be more frustrated with the Quantum 2. PLEASE PLEASE PLEASE - PRESONUS answer this question!
Studio install is ALL presonus gear so this is not a good look for the customer or the brand. Thanks.