Can find the power connector on this monitor?

My parents had bought me a monitor used at best buy. Since it was used, it didn't come with a power cable. I thought that any power cable would do. I can't find the plug for where it goes. Can someone help me? I you know what type of connection I need please post the name of the item. Thank you

http://www.bestbuy.com/...Id=9103104

It uses an adapter not a regular power cord. It has a round 'barrel' plug that goes into where I have put a red circle. You'll have to find another one somewhere as it uses a specific voltage…Can find the power connector on this monitor

I see a power brick (like for a laptop) plugs into one of the round holes in the second row in the center of the back.
Contact Lenovo for a source, or at least specifications so you can find a substitute.
This is a very expensive touch screen unit for high resolution and sophisticated uses. Worth spending a few dozen $ for power.
Best Buy should have included the power brick. I bet they still have it in the back room and forgot about it.