USB 1.1 or 2.0
- Thread starter 34erd
- Start date
pcmagic
Member
Is the USB device or USB ports on computer labeled as USB Hi-Speed?
Many devices and computers using USB 2.0 will indicate if products are USB 2.0 ready or that they are USB 2.0 Hi-Speed. Computers and devices that have this are Hi-Speed are USB 2.0 compatible.
Did you buy your computer before 2001?
USB 2.0 was introduced in 2001, if you purchased your computer before 2001 it is likely that you are using USB 1.1 or 1.0.
Microsoft Windows device manager lists USB as Hi-Speed.
Compatible versions of Microsoft Windows will list USB 2.0 ports and USB devices as "Enhanced" in the device manager.
Additional information about what versions of Windows support USB 2.0 can also be found on document CH000603.
Product documentation
If after following the above recommendations you are still unable to determine enough information about what version of USB your computer has refer to the USB product documentation and/or the motherboard documentation.
USB VERSIONS
USB 1.0 - The original release of USB with support of up to 127 devices transferring 12 Mbps.
USB 1.1 - Also known as full-speed USB, USB 1.1 is similar to the original release of USB however minor modifications for the hardware and the specifications. This version of USB still only supports a rate of 12 Mbps.
USB 2.0 - USB 2.0 also known as hi-speed USB was developed by Compaq, Hewlett Packard, Intel, Lucent, Microsoft, NEC and Philips and was introduced in 2001. Hi-speed USB is capable of supporting a transfer rate of up to 480 Mbps and is backwards compatible meaning it is capable of supporting USB 1.0 and 1.1 devices and cables.
Many devices and computers using USB 2.0 will indicate if products are USB 2.0 ready or that they are USB 2.0 Hi-Speed. Computers and devices that have this are Hi-Speed are USB 2.0 compatible.
Did you buy your computer before 2001?
USB 2.0 was introduced in 2001, if you purchased your computer before 2001 it is likely that you are using USB 1.1 or 1.0.
Microsoft Windows device manager lists USB as Hi-Speed.
Compatible versions of Microsoft Windows will list USB 2.0 ports and USB devices as "Enhanced" in the device manager.
Additional information about what versions of Windows support USB 2.0 can also be found on document CH000603.
Product documentation
If after following the above recommendations you are still unable to determine enough information about what version of USB your computer has refer to the USB product documentation and/or the motherboard documentation.
USB VERSIONS
USB 1.0 - The original release of USB with support of up to 127 devices transferring 12 Mbps.
USB 1.1 - Also known as full-speed USB, USB 1.1 is similar to the original release of USB however minor modifications for the hardware and the specifications. This version of USB still only supports a rate of 12 Mbps.
USB 2.0 - USB 2.0 also known as hi-speed USB was developed by Compaq, Hewlett Packard, Intel, Lucent, Microsoft, NEC and Philips and was introduced in 2001. Hi-speed USB is capable of supporting a transfer rate of up to 480 Mbps and is backwards compatible meaning it is capable of supporting USB 1.0 and 1.1 devices and cables.
Last edited: