The Cisco ME34X-PWR-AC is an internal AC power supply module that converts 100–240 V AC input at 50–60 Hz into regulated DC power for Cisco ME-3400EG and ME-3400E series Ethernet access switches. Designed to be mounted inside the switch chassis, it features a switch-integrated form factor with integrated chassis cooling to support telecom and enterprise network equipment racks. Common replacement options for this power module include PWR-C49-300AC.
