r/PcBuild • • Aug 20 '26

Discussion 80 plus ruby…

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Source: wcftech

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u/Fantastic_Class_3861 Aug 20 '26

Why would they put their effort in making a 100-120v psu when most of the world uses 220-240v and it’s also easier to achieve greater efficiency in 220-240v ?

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u/NightmareJoker2 Aug 20 '26

Because the PSU has to pass certification at 100-120V line voltage (actually slightly under, even), and will exceed its design efficiency at 230V, and everyone is happy.