What is the most powerful 4 bay Qnap? Or 6 bay as long as it is (4 HDD+2 SSD)? The main purpose is to run VM's but I don't need to spend too much on Hard drives. I would rather have 4 big HD than 6 or 8 smaller hard drives. Answer: Qnap Desktop NAS TVS-473X-64G 4-Bay, RAID 0/1/5/6 (64GB