Request info on 12/48v PSU
Yes, your interpretation of the label is correct as far as I can tell.

Note also that \$12\ \mathrm{V}·2.99\ \mathrm{A} + 48\ \mathrm{V}·0.82\ \mathrm{A} = 75.24\ \mathrm{W}\$, in agreement with the 75 W power rating. This, combined with how simple this interpretation of the markings is, is sufficient evidence for me to say with confidence that you are correct.







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