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USB Drive that simultaneously connects to more than one computer

I have a device with an usb hard key inside,and I want to have an usb update interface used to update the usb hard key outside the device. i don't know how to do...

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migrated from stackoverflow.com Nov 10 '10 at 0:27

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marked as duplicate by Ignacio Vazquez-Abrams, studiohack, Diago Dec 24 '10 at 15:18

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what i think is very simple,like i disconnect the usb cable form my device then connect it to my computer to upgrade.i just don't want to open the device and disconnect the cable every time when i decide to upgrade –  Anonymous Nov 9 '10 at 8:36

1 Answer 1

What do you call a "hard key"? If it's a hard disk and so that USB device is a storage device: you can't. You would need a NAS server in your network, able to share the device as shared folder over IP.

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thanks,it's a dongle, –  Anonymous Nov 9 '10 at 8:26