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7.2.2 Voltage Drop Budget
The voltage drop budget is determined from the following:
• The voltage supplied by high-powered hub ports is 4.75 V to 5.25 V.
• The voltage supplied by low-powered hub ports is 4.4 V to 5.25 V.
• Bus-powered hubs can have a maximum drop of 350 mV from their cable plug (where they attach to a
source of power) to their output port connectors (where they supply power).
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