CISCO PWR-C45-1000AC= 4500 Series 1000 Watt Power Supply Type: Power Supply Specifications: Input voltage: 100 to 240 VAC (±10% for full range) Input current (rated): 12A at 100 VAC 5A at 240 VAC Output current (data): 12V at 83.4A 3.3V at 12.2A Power Provided: 1000 Watt Heat dissipation: 943 BTU/hr Holdup time: 20 ms System Requirements: Cisco IOS 12.1(12c)EW, Cisco Catalyst Operating System 7.4(1) Compliant Standards: FCC Class A certified, CSA, UL, CISPR 22 Class A, EN 60950, EN 61000-3-2, EN50082, EN55022, ICES-003, VCCI Class A ITE, EN55024 Parts: 90 days limited Labor: 90 days limited