usb 2.0 can support 127 devices
127 USB devices are supported by one host controller.
For communicating with peripheral devices.
Windows xp will support 127 usb ports
The different types of charging ports available for electronic devices include USB-A, USB-C, Lightning, and Micro-USB.
This is not a backup drive, its a USB hub. Its designed to add more USB ports when you do not have enough for all of your devices.
Buy a USB extension plug in.
For communicating with peripheral devices.
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In regards to the average usb port hub and how many ports are available, this can vary. The average usb port hub can support up to four usb inputs at a time.
As far as I know routers equipped with USB ports support usb printers and storage devices other than that was not reported.
serial ports are not in use any more, the new standard is usb
Buy a USB hub and connect to one of the USB ports. This splits any one USB port into 4 or 7 ports(depending on the model of hub).