Built-In Power Supply broke?

I recently connected this My Book Essential to my computer and never had any problems. Today I was backing up some data and the Hard Drive powered off all of a sudden. I tried using different power supplies from other External Hard Drives, but the Hard Drive does not respond, does not power on. There´s nothing wrong with my USB ports in my computer since all the other My Books I have work fine. Maybe the Bult-In Power supply broke?

Can you please advise on this Matter. I sure hope the Data from the disk isn´t lost…

Can anyone please help me?

Best Regards

Hi rcp2014, I recommend you to contact tech support for a replacement power supply. You can also see the link below to see the compatible specs for device. 

http://support.wdc.com/contact/index.asp?lang=en

http://wdc.custhelp.com/app/answers/detail/a_id/1378