Solved: HP Dreamcolor Z27x- USB 3.0 ports - what are they used for? - HP Support Community - 7059610
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USB 3.0 Cable A Male to B Male, COOYA 6FT USB 3.0 A to USB 3.0 B Cable Long USB 3.0 Type-B Cord for Monitor, Printer, External Hard Drive, USB 3.0 Hub,
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