Western Digital is trying to redefine the word “RPM”
The German-language forum that the article mentions has been doing some great detective work: https://www.hardwareluxx.de/community/threads/crystaldiskinf...The conclusion on page 4 of the above thread:> Non-Pro RED = 5400rpm according to data sheet> Pro Red = 7200rpm according to data sheet> Internal both 7200rpm and 120Hz.> Apparently all WD / HGST helium plates have real 7200rpm, no matter what it says.Simply absurd, if true. Here, for example, is a screenshot of WD's WD100EFAX store page: https://imgur.com/HseW9PaNo mention of an RPM "class". The spec sheet does refer to it as "5400 RPM Class", but with no further description of what the term means: https://media.flixcar.com/f360cdn/Western_Digital-3805661149...What a world when you can't even trust the spec sheet. What's next, 10 watt class drives that pull 20 watts? 3-year class warranties?