Super Power Supply AC / DC Laptop Adapter Charger Cord for Lenovo ThinkPad L540 Type 20AV; T440 Type 20B6, 20B7; T431s Type 20AA; T440p Type 20AN, 20AW; T440s Type 20AQ, 20AR; T540p Type 20BE Netbook Notebook Battery Plug Input: 110-220V Output: 20V 4.5A 90W Warranty: 1 Year Super Power Supply are manufactured and tested to match or exceed OEM products. Trademarked by Super Power Supply. Sold exclusively by Super Power Supply