The input for the USB in the back of the computer or on the modem
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USB 3.1 (C) can deliver a power output of up to 100 watts (20 volts and 5 amps).
For manufacturers, the cost to implement them on a motherboard is only a couple of cents. If you want to add a USB hub to your computer, they can usually be had for under $20.
Yes, there are usb barcode readers. The prices for them range from $20 to $105. You can find them in a variety of online websites, such as Amazon or NewEgg.
You will need to purchase a PCI USB hub. These are typically very cheap (typically under $20). An example product is linked to below.
yes, i think, i saw a guy that got 20 prestiges
You will have to purchase a USB card reader. They are very inexpensive and can be bought anyplace that sells computer accessories.
The USB 2.0 and 3.0 device will work. USB 3.0 is backwards compatible with USB 2.0.
Yes if your phone is USB 3.0 and not USB 2.0.
You can use the micro usb charger and reader? witch varrys prices from 10-20 dollars.
USB's are available at many different locations, like offline, and online retail stores where they are sold. Examples of some are 16 gigabytes, for only $8-14, or 32 gigabytes for only about $20-25, and of course prices are different everywhere, but most range around these few selections.
Onboard USB are USB ports built into the motherboard.