FMC-M5-PS-AC-770W is a Cisco FMC 770W AC Power Supply
The Cisco Secure Firewall Management Center (FMC) is your administrative nerve center for managing critical Cisco network security solutions. It provides complete and unified management over firewalls, application control, intrusion prevention, URL filtering, and advanced malware protection. Quickly and easily go from managing a firewall to controlling applications to investigating and remediating malware outbreaks. It is a key part of the broad and integrated Cisco Secure portfolio, delivering in-depth analysis, streamlined security management across the network and cloud, and accelerated incident investigation and response, working across your Cisco and third-party technologies.