GE Security CC-BP0855 Contains a 37” Door Kit, (2) 5-Module Trays, (2) Metal Shelves, (1) Telephone Distribution Module 1x9, (1) Telephone Interface Module 1x8, (1) 8x8 High Performance Amplifier with Satellite Pass Through, (1) 4-Port Gateway Router, (1) 5-Port 10/100 Ethernet Switch, (1) Power Distribution Module, (1) 1.3 Amp Power Supply, (5) blank faceplates. Ships unassembled with installation instructions.