The Cisco Catalyst 4500 Series offers a variety of power supplies and accessories to meet the diverse needs of Enterprise and Service Provider customers. All of the available Cisco Catalyst 4500 Series power supplies can be used for data-only deployments, which typically require just a few hundred watts. For deployments that dictate support for inline power, Cisco offers several options.
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Telephony, PBX & VoIP > Phone System Accessories > Power Equipment, Surge Protection & UPS > Power Equipment > Power Supplies