20V 4.5A 90W Replacement Laptop AC Adapter Power Supply Charger+Cord for IBM Lenovo Thinkpad T400 T410 T420 T500 T510 Input voltage: 100-240V ~ 1.5A, 50 - 60Hz Output voltage: 20V ~ 4.5A, 90Watt Size of connector: 7.9X5.5mm item is compatible replacement If you don't see your model on the list please contact us This Product Has 12 Months Replacement Warranty