USB Switch

Hi ,
I have an project where in i need to share a USB mass Storage Device
among two HOST PC's. The hosts would not use the Shared resource at the
same time. So I planned to use 4 SPDT Swithes to switch the Storage
device when ever required. When I did implemented this, I found that
the Mass Storage device was not recognized by either of the PC's. Could
anyone explain the reason and method to implement such a solution
Regards

.

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