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USB 3.0 (20 pin) Internal Connector to USB 2.0 Device (9pin)

Last response: in Motherboards
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December 27, 2012 6:21:02 PM

I have been working on a solution to this for days. Can't come up with anything good.

I need one more internal usb 2.0 (9.0 pin connector) I have tons of free internal USB 3.0 connectors. I am unable to find an adaptor that will directly convert a 9 pin female plug, to 20 pin female. (it would have to have a 9 pin male, to 20 pin female.) What do you recommend?


I have considered this solution, will it work?
http://www.amazon.com/gp/product/B000V6WD8A/ref=ox_sc_a...

http://www.amazon.com/8-inch-20-Pin-Motherboard-Connect... 3.0 header
a b V Motherboard
December 27, 2012 6:28:25 PM

What motherboard make and model do you have?
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December 27, 2012 6:47:14 PM

Gigabyte GA-Z77X-UD5h-wb

It has 2 USB 2.0 Headers,

The wifi card that it came bundled with Uses one of the USB 2.0 (9 pin) sockets. Then I have 2 sets of (2) Case front mounted USB 2.0. Each one requires its own USB 2.0 Socket.

I have 2 or 3 left over usb 3.0 (20 pin) Sockets on the mainboard.
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a b V Motherboard
December 27, 2012 7:31:40 PM

Here is the only thing I could find and it seems to only be purchased out of Europe (don't know your location, if it makes a difference), but here you go.

http://www.idealo.co.uk/compare/3687944/inline-usb-3-0-to-2-0-adaptor-cable-internal-usb-3-0-mainboard-to-2x-usb-2-0-device-0-15m-33446i.html

Never have seen one of these before so I wouldn't have any idea how (or if) it would work. Do you need this for a card reader or something?
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a b V Motherboard
December 27, 2012 7:55:28 PM

I am confused, the manual says it has 4 internal USB 2.0 headers? And it says the 2 internal USB 3.0 headers are backwards compatible to 2.0... I think I am missing the issue here.
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a b V Motherboard
December 27, 2012 9:04:22 PM

The manual, on page 11, says

"...
3 x USB 3.0/2.0 headers
Š2 x USB 2.0/1.1 headers
..."

http://download.gigabyte.eu/FileList/Manual/mb_manual_ga-z77x-ud5h_e.pdf

and the OP has three internal USB 2.0 devices that he needs headers for. He can't just plug the USB 2.0 connector into the USB 3.0 header. The pin alignments are different (pg. 33 in the manual). He needs a male 9-pin to a female 20-pin adapter to plug the USB 2.0 device into the 3.0 header.
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December 28, 2012 3:38:02 PM

Cball is right. I will take a look at that cable. I don't want to to fry my boad when I plug it in though. Haha
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April 14, 2013 6:30:52 AM

elcid79 said:
I have been working on a solution to this for days. Can't come up with anything good.

I need one more internal usb 2.0 (9.0 pin connector) I have tons of free internal USB 3.0 connectors. I am unable to find an adaptor that will directly convert a 9 pin female plug, to 20 pin female. (it would have to have a 9 pin male, to 20 pin female.) What do you recommend?


I have considered this solution, will it work?
http://www.amazon.com/gp/product/B000V6WD8A/ref=ox_sc_a...

http://www.amazon.com/8-inch-20-Pin-Motherboard-Connect... 3.0 header


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April 14, 2013 6:34:57 AM

Amazon sells this adapter,

USB 3.0 (20 pin) Internal Connector to USB 2.0 Device (9pin)
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April 14, 2013 6:40:15 AM

They won't ship to the USA.
However, Amazon sells it;

USB 3.0 (20 pin) Internal Connector to USB 2.0 Device (9pin)
$28 each
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!