Super Power Supply AC / DC Laptop Charger Adapter Cord for IBM Thinkpad T20, T21, T22, T23, T30, T40, T40P, T41, T41P, T42, T42P Netbook Notebook Battery Plug Adapter Voltage Input Range 100-240V / Output: 16V 4.5A 72W Warrenty: 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