USB HUB, med flere udtag

at du kan trække flere ting på den MED strømforsyning

du har kun 500 milliampere at gøre godt med fra dit bundkort

... mere dog at det er ~250mA pr. USB stik/hul på 'rigtige' bundkort. Gælder IKKE for de flere bærbare; der er det 250mA tilsammen...

http://pinouts.ru/Slots/USB_pinout.shtml ->
USB power usage:
Bus-powered hubs: Draw Max 100 mA at power up and 500 mA normally.
Self-powered hubs: Draw Max 100 mA, must supply 500 mA to each port.
Low power, bus-powered functions: Draw Max 100 mA.
High power, bus-powered functions: Self-powered hubs: Draw Max 100 mA, must supply 500 mA to each port.
Self-powered functions: Draw Max 100 mA.
Suspended device: Max 0.5 mA

USB voltage:
Supplied voltage by a host or a powered hub ports is between 4.75 V and 5.25 V. Maximum voltage drop for bus-powered hubs is 0.35 V from it's host or hub to the hubs output port. All hubs and functions must be able to send configuration data at 4.4 V, but only low-power functions need to be working at this voltage. Normal operational voltage for functions is minimum 4.75 V.

jeps, det var vidst kun inde i mit hovede at det gav mening, som karise_larry så rigtigt påpejer så er det noget sludder jeg fik skrevet. det er naturligvis ikke 599 mA total for hele bundkortet men 500 mA pr. port

Læg et svar, så jeg kan lukke

ingen points her

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