USB 3.0 host controllers and hubs do not need to consume large amounts of power nor do they need to always be active, if designed well. USB 3.0 has LPM (link p

USB 3.0 host controllers and hubs do not need to consume large amounts of power nor do they need to always be active, if designed well. USB 3.0 has LPM (link power management) and Microsoft wrote up a nice overview: https://learn.microsoft.com/en-us/windows-hardware/drivers/usbcon/usb-3-0-lpm-mechanism- https://learn.microsoft.com/en-us/windows-hardware/drivers/u...