The Cisco C3K-PWR-750WAC power supply is a hot-swappable AC power module for Cisco Catalyst 3750-E and 3560-E Series switches, delivering up to 750 watts of output from a 100–240 VAC input to support enterprise switching infrastructure. It is an internal modular power supply (FRU) with an integrated cooling fan and high-efficiency power conversion, designed for field replacement in Catalyst chassis and to support redundant power configurations. Common replacements include Cisco C3K-PWR-1150WAC Power Supply, Cisco PWR-C1-715WAC Power Supply, and Cisco C3K-PWR-1100WAC Power Supply.
