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Will a USB 2.0 device work on a USB 1.1 port?
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<blockquote data-quote="bobtomay" data-source="post: 1246200" data-attributes="member: 24160"><p>No, 2.0 is backward compatible. 1 is not forward compatible.</p><p></p><p>That is: </p><p></p><p>A USB 1 or 1.1 device will work on a 2.0 port - the port is backwards compatible.</p><p></p><p>A USB 2 device will not work on a 1.1 port - the port is not forward compatible.</p><p></p><p>NOTE: There are no Macs capable of running 10.6.7 that do not have USB 2 ports. If you have an Intel Mac, you have USB 2.</p><p></p><p>If you're looking at System Profiler to see this info, what you are probably seeing is the mouse you have plugged in, which is more than likely a USB 1 device.</p></blockquote><p></p>
[QUOTE="bobtomay, post: 1246200, member: 24160"] No, 2.0 is backward compatible. 1 is not forward compatible. That is: A USB 1 or 1.1 device will work on a 2.0 port - the port is backwards compatible. A USB 2 device will not work on a 1.1 port - the port is not forward compatible. NOTE: There are no Macs capable of running 10.6.7 that do not have USB 2 ports. If you have an Intel Mac, you have USB 2. If you're looking at System Profiler to see this info, what you are probably seeing is the mouse you have plugged in, which is more than likely a USB 1 device. [/QUOTE]
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Will a USB 2.0 device work on a USB 1.1 port?
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