What is important to know is that some usb power sources aren t going to charge or power your device well.
Micro usb cable power rating.
The startech cable has a usb 2 0 interface with the capacity about 480 mbit s.
A regular usb 1 0 or 2 0 socket has four pins and a usb cable has four wires.
Universal serial bus usb is an industry standard that establishes specifications for cables and connectors and protocols for connection communication and power supply interfacing between computers peripherals and other computers.
The available current for low power one unit load superspeed devices is 150 ma an increase from the 100 ma defined in usb 2 0.
Usb provides power according to the generation of the hardware.
Okay now the numbers.
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As with earlier versions of usb usb 3 0 provides power at 5 volts nominal.
This makes this wire handy when it s necessary to connect two digital gadgets through otg.
Usb 1 0 and 2 0 provide 500mah of current.
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One of the ends of the cable is a micro usb male while the other one is a micro usb female.
This is especially useful for peripherals that draw higher power levels such as an external hard drive.
For high power superspeed devices the limit is six unit loads or 900 ma 4 5 w almost twice usb 2 0 s 500 ma.
The inside pins carry data d and d and the outside pins provide a 5 volt power supply.