The 8700W enhanced AC power supply features:

• PoE scalability: Supports up to 420 IEEE 802.3af Class 3 (15.4W) PoE devices in a single chassis with full redundancy, thus reducing total cost of ownership for high-density PoE deployments in the campus access layer
• Remote power restart using external relay controller: Remotely power cycle or shut down the Cisco Switch using any appropriate third-party relay controller without needing access to the supervisor engine CLI, thereby reducing maintenance costs and improving MTTR
• Remote power restart via Cisco IOS Software CLI: Remotely power cycle the Cisco Switch via Cisco IOS Software CLI, thereby reducing maintenance costs and improving MTTR
• Multiple (triple) input: Scales the system power depending on the need (scale as you grow), with fully isolated inputs, providing flexibility