HP 505911-001 External AC power adapter (150 Watt) - Requires separate power cord World Wide Input Voltage 100-240VAC 50/60Hz OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection) Tested Units. In Great Working Condition. UpBright 30 days money back guarantee. 1 full year service warranty. UpBright HP 505911-001 External AC Adapter (150 Watt) Power Supply Cord Cable PS Charger Mains PSU