DiySecurityCameraWorld -48V 2A Power Supply for (DSC-IPVE901) and PoE Switch or PoE Injector Power output: 48VDC, 2000 mA; Maximum power output: 96W Input requirements: 100-240 VAC, 50/60 Hz Polarity: Center-Positive. (Inner diameter: 2.1mm, Outer diameter: 5.5mm ) 1PC 48VDC 2A Power Adapter, 1PC Power Cord.