My Drobo has been acting up since last week. I couldn’t get speeds over 40MB/sec for a while i wasn’t seeing anything faster than 25MB/sec. I read all the forums and i was on deadline to return some customer data. I put hours into this only to get to 35MB/sec. The final answer was actually a stupid one i read in a forum but didn’t put much stock in. My favorite part of USB-C is that it doesn’t matter which way you plug it in. At least that is what i thought. Turns out that with some Drobo 5c it does matter. After flipping the port, i’m back to useful speeds. It’s even mentioned in the Drobo 5c FAQ.