Reddit threadsters are suggesting that certain 5400rpm 8TB Western Digital drives are actually rotating faster, at 7200rpm, and using startup sound profiles to back up their claims. There are a group of reddit threads, like this one by u/sbjf, saying WD 8TB EMAZ and EZAZ drives, used in WD’s Elements and My Book external storage…

via What madness is this? WD 5400 rpm 8TB drives sound like faster 7200 rpm spinners — Blocks and Files