Cisco ASA-PWR-AC enterprise networking (router/Catalyst switch/UCS families) Power Supply

The Cisco ASA-PWR-AC is a redundant, hot-swappable AC power supply module rated at 400 watts, built for the Cisco ASA 5545-X and ASA 5555-X Series next-generation firewalls. Both platforms accept dual power supplies for N+1 redundancy, so a second module of this type lets a firewall keep running through a single supply failure without an outage, which matters given the ASA 5500-X range typically sits inline as the perimeter or data centre firewall for the network behind it. The 5545-X and 5555-X sit near the top of the ASA 5500-X range by throughput, commonly deployed at mid-size to large enterprise edges and in data centre firewall clusters, and this supply is sized and keyed specifically for that pair of chassis rather than the smaller 5525-X/5515-X models. Tech-Star (UK-based, shipped worldwide) stocks Cisco components to support ongoing network maintenance.