ONErack 4RU Dual Redundant Power Supply Main Output Power: 450 Watt Hot Swappable Include: 1 x Dual Power supply, 2 x daisy-chain cable, 6 x guide rails, 4 x screws, 1 x service cable ONErack is now ready for mission critical applications with this powerful, Dual-Redundant, Hot-Swappable Power Supply. Key Features - 450w of Main Output Power - Hot swappable - Dual redundant - Load sharing - DC power conditioning - AC surge protection - DC surge protection - LED Load Indicators - LED Fault Indicators - Fault Relay - Resettable fuses - Provide 2 different voltages to each slot at the same time - Each slot has 7 different voltage settings - Fast, easy installation of small devices - Simple, time saving serviceability