Cisco Catalyst 4500X 750W AC Power Supply C4KX-PWR-750AC, Ethernet, Rack Mount
Equipped with power factor correction for energy efficiency. Total BTU output: 1122 BTU/hour (nominal), 1365 BTU/hour (max). What you get. Product Code: C4KX-PWR-750AC-R=. Compact form factor (2U) for space-saving integration in racks.