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UpBright? 170W Original AC Adapter Lenovo ThinkPad W520 45N0114 0A36227 4284AR9 DC Power Supply
World Wide Input Voltage 100-240VAC 5060Hz
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