The Cisco 7507 Router is a multiprotocol, high performance platform with enhanced High Availability (HA) features. It combines proven Cisco software technology with exceptional reliability, serviceability, availability and performance features to meet the requirements of today's most mission-critical internetworks. It provides service-provider and enterprise networks with the flexibility they need to meet the constantly changing requirements at the edge of the network.It has seven slots: five interface processor slots and two slots for the Route Switch Processor. There are bays for up to two AC-input or DC-input power supplies, which allows for load sharing and increased system availability.