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You can choose the appropriate power supply according to your needs.

12Vdc +/-5% ≥5A for two 3.5" HDDs, ≥7A for three 3.5" HDDs, ≥9A for four 3.5" HDDs, ≥11A for five 3.5" HDDs

12Vdc +/-5% ≥4A for two 2.5" HDDs, ≥5A for three 2.5" HDDs, ≥6A for four 2.5" HDDs, ≥7A for five 2.5" HDDs

Your SATA drives can also be powered from a separate PSU.

You need to calculate the total current required for all the HDDs you are using. Check the HDD nameplate to get the HDD startup current (the startup current will be larger than the operating current), and then add them together to get the total current required. This is basically the maximum output current of the power adapter you need.