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Soldering is a method of connecting two pieces of metal together by melting another filler metal in between them. There are many kinds of soldering, but this article is designed to teach you the basics of electrical soldering.

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Can anyone tell me how to replace board mounted USB3 B socket?

My Fujitsu IX500 scanner was working great, but the USB3 B female socket had broken off leaving 4 bare wires without that center post. I have the logic board removed, and before diving into a soldering job, I am hoping for some tips replacing this 9-pin + 2 post board-mounted port. Since a replacement scanner is $500, I am willing pay a professional to do the repair if advised.

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Charles, I have the same problem - how did you resolve yours ? I am thinking of having a go at replacing it myself.


Can anyone lend the exact part number from digikey.com? I’ve browsed and appears to be a couple potentials listed under USB 3.0 Connectors.

I’ve had my Scansnap for 5 or 6 years and the internal, port prongs got smashed inward because someone plugged the wrong size cable into it. Any assistance with the matter would be appreciated.

What I believe it may be: USB-B (USB TYPE-B) USB 3.2 Gen 1 (USB 3.1 Gen 1, Superspeed (USB 3.0)) Receptacle Connector 9 Position Through Hole, Right Angle

Digi-Key Part Number: 123-A-USB3B-ND

Lead time states 21 weeks - hopefully that’s incorrect.


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A decent soldering station and good materials would cost you more than the scanner, let alone the difficulty of replacing a Usb port. Do yourself a favour and find a Pro who can guarantee the job will be done properly, such repair isn’t exactly an easy one.

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If you can source the part or if it’s a standard usb 3 printer port, then i’d say the job can be diy’d with good soldering skills for under $50, using low melt solder. Idea is same with all through-hole components, mix the low melt solder into joints and pull connector out. Hot air station helps but is optional. All standard ports i’ve seen are 5-2-2 pin layout with 2 support legs, all fairly close together.

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Thank you Steven, I think I will try it. I bought the scanner from an Ebay seller who did not realise it had a fault, and refunded me the major part of my purchase price, so it only stands me in for a few bucks. Worth a go. I shall let you know how I get on.


Nice David, and thanks to the OP Charles, we know the part is a standard port available at digikey and most likely mouser also. Good luck with the repair.



I bought the part from digikey.com and had a local Berkeley shop (iresurrectrepairs.com) do that micro-soldering for me.

They did a beautiful job and the scanner works like new for under $100.

Good luck


Great to hear you got it working again, and thanks for letting us know about the part used.


I have the same problem and found the Digi-Key Part Number: 123-A-USB3B-ND requires a minimum order of more than 5,000 pieces. Is there an alternative source?



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Charles Dill будет вечно благодарен.
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