Yea, I was surprised the NZXT held three 3.5 HDD's but airflow is poor with 1 top, 1 year and 2 front fans.
I loaded the Meshify with fans. I put my 280 cpu AIO on the top and put 3x140mm Arctic P14 fans. Then I put 3 more 140 P14's on the front. I kept the stock fan in the rear since I ran out of Arctic fans. It runs pretty cool with all the panels and covers on it. I really appreciate you recommending this case, I had no idea it could fit all these drives.