CWK&reg; Laptop Charger AC Adpater Power Supply Cord Plug for Asus X401A X501A X502CA X550CA X550LA X551CA X401U X401 X501 X501U X301A X301 X402CA X402; R510C R510D R510L R503C R503A R509C; K550 K550CA K550L K550LA K551 K551LB; D550MA D550M D550CA D550C; 550C; A450C; S405CA; X551CA-HCL1201L, X502CA-RB01, X550CA-DB51, X502CA-BCL0901D, X401A-BCL0705Y, X401U-BE20602Z, D550MA-DS01, D550CA-BH31 Ultrabook Power Supply Cord 65W Input Volt Range: 100-240V (Worldwide Compliant) Output: 19V 3.42A 65W (45W Compatible) CWK AC Adapters manufactured with the highest quality materials. Built-in overload, over-voltage, and short circuit protection; 100% compatibility with the original. 90 Days Money Back Guarantee! Buy with confidence! Products trademarked CWK are marketed and sold exclusively by CWK TECHNOLOGY. We focus on providing quality power products and excellent customer service