CWK Laptop Charger AC Adpater Power Supply Cord Plug for Samsung Series 5, 7 ATIV Book NP740U3E, NP530U3C, NP530U3B, NP530U3BI, NP535U3C, NP540U4E, NP540U3C; Np740u3e-k01ub, Np540u4e-k01us, Np540u3c-a03ub, Np540u3c-a01ub, Np540u3c-a02ub, Np530u3b-a01us 13" 13.3-inch Ultrabook Tablet PC Power Supply Cord Laptop Battery Charger 40 Watt Input Volt Range: 100-240V (Worldwide Compliant) Output: 19V 2.1A 40W 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