I am selling this Cisco Pix 501 unit. I don't have the power supply or any means of testing the unit. It was pulled from a Bankrupt Mortgage company during a bankruptcy seizure. I was contracted to organize and ship all seizure items off for auction. They were not interested in this unit because it didn't have any power supply or cables to hook it up with. They gave me the unit and I figured the most logical thing to do is put it up on ebay and sell it. Feel free to ask questions however I dont know much about this unit. I have no way of testing this unit. I am selling this unit as is, no returns for any reason. Please bid accordingly, I imagine the unit works as it appears it was being used by the company prior to seizure.