Cisco offers Catalyst 5002 Chassis with Dual Power Supply.The Catalyst 5002 is a fully modular 2-slot switch chassis. Slot one is reserved for Supervisor Engine I, II, or III. The second slot accepts any Catalyst 5000 line card, enabling flexible solutions for a variety of applications. The Catalyst 5002 chassis fits into a standard 19-inch rack, and all system components are accessible from the same side of the chassis. The chassis includes dual load sharing and redundant power supplies. A single supply can support any configuration, making the system highly reliable. The Catalyst 5002 accepts any Catalyst 5000 Family supervisor module and one interface module, enabling flexible solutions.