I had a spare WD red 6tb which was a standby for my NAS. This went in with no issues at all.
- Connected drive via Sata to one of my windows machines. Partitioned it and formatted.
- Inserted into Q10 Pro
Works fine.
Is your Red 6tb or Red pro 6tb?
I have red pro version, is silent, but i hear some noise at writing.
I think because case is made from plastic.