The EdgeReader ERW400 is an IP-enabled intelligent access control reader with integrated iCLASS read/write capabilities. It provides full access control functionality at the door with a single unit, eliminating the need for separate power supplies or central controllers. Key features include storing up to 44,000 cards on device, PoE support, and integration capabilities with various host systems using TCP/IP. It is designed for use in new building installations to reduce wiring while controlling all access functions locally.