The APC Netshelter Rack Automatic Transfer Switch AP4433A is a robust, rack-mountable solution designed to provide reliable power redundancy for critical loads. This automatic transfer switch features a sleek black design and is equipped with emergency power-off capabilities, humidity monitoring, an LCD display, LED indicators, and a temperature sensor. With a one-phase transfer backup, it includes 2 input ports and 12 output ports, ensuring minimal downtime disruption. The device supports gigabit Ethernet for faster communication and allows for the connection and management of up to 32 Rack ATSs from a single IP address. Installation is made easy with an 8 ft. integrated power cable, an external serial cable, and a mounting kit with rack mounting brackets. Additionally, it supports APC Wi-Fi USB devices for cableless installation and offers remote management via Web UI, CLI, SNMP, or EcoStruxure expert.