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

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_act_title_1?ie=UTF8&smid=A28128AMZ00PEQ

http://www.amazon.com/8-inch-20-Pin-Motherboard-Connectors-Y-Cable/dp/B007PODI1W/ref=sr_1_3?s=electronics&ie=UTF8&qid=1356639600&sr=1-3&keywords=usb 3.0 header
11 answers Last reply
More about internal connector device 9pin
  1. What motherboard make and model do you have?
  2. 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.
  3. 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?
  4. 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.
  5. 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.
  6. 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
  7. 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_act_title_1?ie=UTF8&smid=A28128AMZ00PEQ

    http://www.amazon.com/8-inch-20-Pin-Motherboard-Connectors-Y-Cable/dp/B007PODI1W/ref=sr_1_3?s=electronics&ie=UTF8&qid=1356639600&sr=1-3&keywords=usb 3.0 header
  8. Amazon sells this adapter,

    USB 3.0 (20 pin) Internal Connector to USB 2.0 Device (9pin)
  9. cball1311 said:
    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?
  10. 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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