With service provider-friendly hardware and mission-specific software, the Cisco ME 3400 Series is the first access switch family optimized for both the Ethernet-to-the-Home (ETTH) triple-play services and Ethernet-to-the-Business (ETTB) VPN services. It provides a complete security solution for Metro Ethernet access that includes subscriber, switch, and network protection. The Cisco ME 3400 Series supports multiple software images to provide a "pay-as-you-grow" deployment model. With service breadth spanning triple-play and Layer 2 and Layer 3 VPN services, reduced total cost of ownership (TCO) and operating expenses (OpEx) can be achieved from a single ETTH and ETTB access solution.The Cisco ME 3400G-12CS DC features 12 dual-purpose (10/100/1000 and SFP) ports, four SFP uplinks, and two fixed redundant DC power supplies.