How to Tell if a USB Port is High-Speed
USB storage devices, such as hard drives and flash drives, are capable of transferring data at extremely high speeds. However, a USB device is only as fast as the port it is plugged into, and a non-high-speed USB 1.1 port will severely limit the transfer rates of a storage device. Check the speed of your computer's USB host controllers to find out whether you are hindering the speed of your USB devices.
Press the "Windows" and "R" keys simultaneously to display the Run window.
Type "devmgmt.msc" into the Run window and press "Enter." The Windows Device Manager will be displayed.
Double-click the "Universal Serial Bus Controllers" category to expand it, then examine the entries below. Look for any entry with the word "Enhanced" in the title, such as "Intel USB2 Enhanced Host Controller." The listing of the word "Enhanced" indicates that the port is a high-speed USB 2.0 port.
Tips & Warnings
- In most cases, when the USB host controller in a computer is listed as "Enhanced," it means that all of the USB ports in the computer are high-speed USB 2.0 ports. However, there are some exceptions to this. If the computer has a USB expansion card, the card itself may have USB 2.0 ports, while the USB ports on the computer motherboard may be the older USB 1.1 standard. Also, some laptop docks and port replicators may not support USB 2.0 speeds.