USB 2.0 max 可出幾多 A?

起初巳為USB2.0 max output 係 0.5A

不過 Wiki 又話USB2.0 max output 係 1.5A

有冇 Ching 知到底係 0.5A 定 1.5A 呀??


http://en.wikipedia.org/wiki/Universal_Serial_Bus#USB_2.0
Battery Charging Specification 1.2[12]: Released in December 2010.
Several changes and increasing limits including allowing 1.5A on charging ports for unconfigured devices, allowing High Speed communication while having a current up to 1.5A and allowing a maximum current of 5A.

底板有supercharge,eg msi z77gd65

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2.0 0.5A

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底板SUPPORT就可以1.5A
正常就0.5A

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USB2.0  output 係 0.5A

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你有無睇清楚 d 字講乜架?
"Several changes and increasing limits....."

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我部NOTEBOOK同電視的兩個USB都係 一個1.5 一個0.5

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0.5A 係USB 2.0既STANDARD
BEYOND呢個VALUE就係各廠自訂既規格

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