My Book Essential 3 TB not listed in My computer, disk management, device manager

You might look onEbay for a board. This link explains abit about matching them up http://community.wd.com/t5/Off-Topic-Discussions/Bridge-Boards/td-p/353839  It sounds strange that both drives go bad at the same time. Are you sure it isn’t a problem with the computer in the USB path? Have you tried plugging the power directly into the outlet instead of a surge protector? Also don’t use a hub or a cable longer than the one provided. Have you tried themon a different PC?

Joe

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