A serial port has an output of less than 2mA, correct ? But does anyone know what the power output of a USB port is ?
Many thanks
2007-02-11 21:04:43 · 8 answers · asked by Stuart P 2 in Computers & Internet ➔ Hardware ➔ Add-ons
most are 500mA
2007-02-11 21:09:54 · answer #1 · answered by biggy4269 3 · 1⤊ 0⤋
Usb Power Out
2016-12-18 07:51:58 · answer #2 · answered by puente 4 · 0⤊ 0⤋
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RE:
Whats the power output of a USB port?
A serial port has an output of less than 2mA, correct ? But does anyone know what the power output of a USB port is ?
Many thanks
2015-08-18 22:27:18 · answer #3 · answered by Burtie 1 · 0⤊ 0⤋
whats power output usb port
2016-01-28 02:56:01 · answer #4 · answered by ? 4 · 0⤊ 0⤋
Of course Amps are current, power is measured in Watts.
Most USB ports are 500mA @ 5V, or 2.5 W
2007-02-11 21:12:07 · answer #5 · answered by gvih2g2 5 · 7⤊ 0⤋
I think from memory a MAXIMUM of 500ma but that depends on how many devices you have plugged into the same port.
Check with www.usb.org - they have a lot of good reference material
2007-02-11 21:13:20 · answer #6 · answered by Maniaca Esoterica 3 · 0⤊ 0⤋
USB 2.0 has 500mA
2007-02-11 21:10:52 · answer #7 · answered by Timothy L 3 · 2⤊ 0⤋
That depends on the motherboard .. Could be 1.0 could be 1.1 or could be 2.0 ... between 100mA and 500mA ..How old is your m/b ?
2007-02-11 21:09:13 · answer #8 · answered by MynameisShirl 5 · 2⤊ 0⤋
USB means ulter supply board it supply the power to the computer
2007-02-11 22:08:19 · answer #9 · answered by ravi 1 · 0⤊ 9⤋