1. Start My Computer, and then go to the folder %windir%system32drivers.
2. Right-click the USB driver file you want to know about, and then click Properties.
3. The version number of the file is shown on the Version tab.
The following is a list of core USB drivers on Windows XP:
- Usbport.sys
- Usbhub.sys
- Usbehci.sys
- Usbuhci.sys
- Ushohci.sys
- Usbccgp.sys
What is USB?
Short for Universal Serial Bus, an external bus standard that supports data transfer rates of 12 Mbps. A single USB port can be used to connect up to 127 peripheral devices, such as mice, modems, and keyboards. USB also supports Plug-and-Play installation and hot plugging.
Starting in 1996, a few computer manufacturers started including USB support in their new machines. It wasn’t until the release of the best-selling iMac in 1998 that USB became widespread. It is expected to completely replace serial and parallel ports.
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