770w ac hot-plug power supply for 5520 controllerCisco Proprietary Power Supply Power the backbone of your Cisco network with the Cisco Proprietary Power Supply, a dual input solution engineered for reliability and global operability. Designed for Cisco devices across data centers, campuses, and branch offices, this power supply supports 120 V AC and 230 V AC inputs, enabling seamless worldwide deployment without the need for separate transformers or regional adapters. It delivers stable, consistent