Marketing description is not available. Product Description: IBM High Efficiency - power supply - hot-plug / redundant - 550 Watt Device Type: Power supply - hot-plug / redundant - plug-in module 80 PLUS Certification: 80 PLUS Platinum Input Voltage: AC 100-127/200-240 V Power Capacity: 550 Watt Manufacturer Warranty: 1 year warranty Designed For: System x3550 M4 (550 Watt), 7914 (550 Watt) General Device Type: Power supply - hot-plug / redundant - plug-in module Power Device Input Voltage: AC 100-127/200-240 V Frequency Required: 50 - 60 Hz Power Capacity: 550 Watt 80 PLUS Certification: 80 PLUS Platinum Manufacturer Warranty Service & Support: 1 year warranty Service & Support Details: Limited warranty - 1 year Compatibility Information Designed For: IBM System x3550 M4 (550 Watt), 7914 (550 Watt)