Power supply

I have misplaced my power supply and have purchased a multi use supply but need to know if the My Book Essential is center pole positive or negative, and the voltage. Or, someplace I can purchase a new supply. I am in a small rural town with no large box stores and would have to purchase on web. Thanks.

You can look for the specifications of the power adapter you need here, base on the model you have.

Thanks Jv. I got the info and will search elsewhere as the distributor was out of stock. The universal i purchased is too low watts.