Abstract: Methods and apparatus for power management are provided that can adjust power delivery to one or more USB devices based on one or more conditions. A system is provided comprising one or more USB ports, and a processor configured to: detect a change in a power state of the system, wherein at least one USB device is connected to the one or more USB ports; determine whether the change satisfies a condition; and in response to the determining that the change satisfies the condition, cause a power management message to be sent to the at least one USB device that modifies a power consumption of the at least one USB device.