Dell OptiPlex 3440 5250 7440 7450 Series 155W Switching PSU Power Supply Unit HU155EA-01 HPY3Y 0HPY3Y CN-0HPY3Y.Dell Part Number: HPY3Y 0HPY3Y CN-0HPY3YModel Number: HU155EA-01Compatible Part Numbers: HKF1552-3BCompatible Models: Dell OptiPlex 3440 5250 7440 7450 SeriesSpecifications:Input:100-240V~3.0A50/60HzOutput: 12.0VA 10.0A12.0VB 11.5AStandby Mode:12.0VA 0.5A12.0VB 1.7ATotal Output: 155W