SiKER 90W USB AC Adapter Power Charger for Lenovo Thinkpad X1 Carbon T440 E431 Lenovo IdeaPad Z510 6277-9QU PA-1900-081-12 months warranty Output: 20V 4.5A~90W Input: 100~240V~1A 50/60Hz DC Connecter size:USB Square Connector Replacement for : 45N0236, 45N0237,0B47002, 0B47003, T440 E431,PA-1900-081 Package:One power charger +One power cord Features 100% Brand Replacement New Ac adapter , with 1 year warranty