Why don't external HDDs mention RPMs?

firstrig

Honorable
Dec 17, 2013
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10,710
Although I am aware that the RPM is a variable that cannot be used as a conclusive test of anything but still, in the interest of transparency, why is it that companies are eager to popularize RPM speeds on their internal hard disks but shy away from doing so on their external HDD?

If you were to take a guess, what RPM would a WD 1 TB external HDD normally be running at?
 
Solution
If it's a 2.5" portable drive with no external power, 99% of the time its going to be 5400rpm due to power constraints and heat maybe.
If its a 3.5" drive with an external power brick there is a chance it could be a 7200rpm drive.


either 5400 or 5900 rpm if it's portable (draws power from USB not AC power line)
 

ShadyHamster

Distinguished
If it's a 2.5" portable drive with no external power, 99% of the time its going to be 5400rpm due to power constraints and heat maybe.
If its a 3.5" drive with an external power brick there is a chance it could be a 7200rpm drive.
 
Solution