USB capacity

[Henrik9]

I have a iMac 27'' from 2013, how many peripheral's can I connect without problems with power-supply? I think about extra hub's, lamps, ventilators and so on?
Best regards
Henrik

 

[Intell]

I think the design limit is 127 devices per USB port. Powerwise, your iMac will notify you when the power requirements have been surpassed and it will turn off the USB ports until they are reduced.

 

[Henrik9]

i think the design limit is 127 devices per usb port. Powerwise, your imac will notify you when the power requirements have been surpassed and it will turn off the usb ports until they are reduced.

thank's a lot!!

 

[Weaselboy]

I have a iMac 27'' from 2013, how many peripheral's can I connect without problems with power-supply? I think about extra hub's, lamps, ventilators and so on?
Best regards
Henrik

Here is the info you want right from Apple. 900 mA (milliamps) at 5 V (Volts) is what the port can put out, so just do the math and add up your devices' power draw.

 

[Henrik9]

Here is the info you want right from Apple. 900 mA (milliamps) at 5 V (Volts) is what the port can put out, so just do the math and add up your devices' power draw.

Thank You!

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