This product is either discontinued or we cannot get that from suppliers.
Cisco PWR-C45-4200ACV, Input Voltage 200 V AC, Output Voltage 3.3 V DC, 12 V DC, Plug-in Module, Compatibility Cisco Catalyst 4500 Series Switches.
Cisco Systems is introducing a new, dual-input, 4200 WAC power supply designed for large scale power over Ethernet deployments.