You are bidding on a Sunrocket Gizmo. It is really a VoIP Gateway with 2 voice ports and two 10/100 base-T ethernet ports. The model number is AC-211-SR.

Why would you want one of these? Instructions appear on the internet to unlock and hack these for use with an alternative VoIP provider or to use with your Asterisk PBX.

The Gizmo include the wall wart (power supply).