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Old 06-26-2016, 01:19 PM
 
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What devices used the USB-b plug? It's the one that's almost a square.

https://en.wikipedia.org/wiki/USB#Ca...eir_connectors

The usual USB port on a computer is called USB A. Android phones use Micro-USB.

Also: USB usually has four wires, two for data and two for power. But Micro-USB has five. What's the fifth wire for?
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Old 06-26-2016, 01:56 PM
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Location: Ohio
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Quote:
Originally Posted by robertpasa View Post
What devices used the USB-b plug? It's the one that's almost a square.

https://en.wikipedia.org/wiki/USB#Ca...eir_connectors
Printers. Cables with USB A on one end and USB B on the other are known as "device cables," because they are used for connecting devices, such as printers, to computers.

Quote:
The usual USB port on a computer is called USB A. Android phones use Micro-USB.

Also: USB usually has four wires, two for data and two for power. But Micro-USB has five. What's the fifth wire for?
USB OTG (On the Go) ID

USB Connector Pinouts

https://en.wikipedia.org/wiki/USB_On-The-Go
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Old 06-26-2016, 02:02 PM
 
Location: OH>IL>CO>CT
5,424 posts, read 8,795,632 times
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Quote:
Originally Posted by robertpasa View Post
What devices used the USB-b plug? It's the one that's almost a square.

https://en.wikipedia.org/wiki/USB#Ca...eir_connectors

The usual USB port on a computer is called USB A. Android phones use Micro-USB.

Also: USB usually has four wires, two for data and two for power. But Micro-USB has five. What's the fifth wire for?

1. The B plug is found on devices were the A-B cable is not hardwired on the device end. Such as scanners, printers, etc. On small devices like keyboards,mice, cameras, phones that end is usually hardwired; or is one of the mini/micro versions.

2. There are 5 pins but still only 4 wires. See graphic for Micro at https://en.wikipedia.org/wiki/USB#Pinouts
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