On 2/16/2017 1:12 PM, Gordon Messmer wrote:
On 02/16/2017 12:28 PM, John R Pierce wrote:
USB 1 and 2 used 4 pins. USB 3 ports have an ADDITIONAL 5 pins,
the original 4 are used for USB 1/2 operation, the new 5 only for USB
3 operation. they are effectively two completely independent
controllers.
Do you mean USB type C? USB 3 is supported and most commonly uses
type A plugs & ports, which should support older devices.
look very closely at a USB 3.0 port, with the 'blue' tongued A
connector, and you'll see 5 additional pins in there behind the standard
USB1/2 4 pins.
https://files.cablewholesale.com/mailimages/usb-30-type-a-connector-det-small.jpg
(male)
http://p.globalsources.com/IMAGES/PDT/BIG/663/B1079644663.jpg (female)
--
john r pierce, recycling bits in santa cruz
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